论坛通知

武汉光电论坛第158期


照片



报告题目:从二维至三维互相关:光学方法与性能评估

Taking Correlation from 2D to 3D: Optical Methods and Performance Evaluation



时     间:2019年5月30日15:00-17:00

地     点:武汉光电国家研究中心A101

报 告 人:Prof. Partha P. Banerjee,美国戴顿大学

邀 请 人:付  玲  教授

 

报告人简介:

Partha P. Banerjee, 美国戴顿大学光电系现任系主任、教授。2000-2005年,曾任戴顿大学电子与计算机工程系系主任。在戴顿大学任职之前,1991-2000年,他任职于阿拉巴马大学汉茨维尔分校,1984-1991年任职于雪城大学。研究领域主要包括:数字与动态全息成像,光致折射材料,光学超材料,非线性光学,以及光学捕捉。Banerjee教授为美国光学学会(OSA)会士、国际光学工程学会(SPIE)会士、物理学会(FInstP)会士、电气与电子工程师协会高级会员。他曾于1987年获得美国国家科学基金会青年学者奖。在戴顿大学,他建立了全息成像与超材料实验室(HAM)。他分别于2010、2016、2019年组织了关于数字全息成像的OSA国际会议,并于2012-2016担任Applied Optics专题编辑。2014-2016年,他曾任OSA环境监测委员会主席。迄今为止,Banerjee教授已出版5本专著,超过135篇期刊论文,超过150篇/场会议论文/报告,以及一项专利。他已指导24位博士与16名硕士获得学位。他还积极参与了华中科技大学工程科学学院、光电学院的国际合作交流,建立了学生交换、人才培养的新项目。


Biography:

Partha P. Banerjee is Professor and Chair of the Department of Electro-Optics and Photonics (EOP) at the University of Dayton (UD), and Professor of Electrical and Computer Engineering (ECE) where he was Chair from 2000-2005.  Prior to UD, he was with the University of Alabama in Huntsville from 1991-2000, and with Syracuse University from 1984-1991.  His research interests include digital and dynamic holography, photorefractives, optical metamaterials, nonlinear optics, and optical trapping.  He is Fellow of Optical Society of America (OSA), International Society of Photonics Engineers (SPIE) and the Institute of Physics (FInstP), and senior member of Institute of Electrical and Electronic Engineers (IEEE).  He received the NSF Young Investigator Award in 1987.

At UD, Dr. Banerjee established the Holography and Metamaterials (HaM) lab.  He has organized the OSA international meeting on Digital Holography in 2010, 2016 and 2019, and was Topical Editor for Applied Optics from 2012-2016. He was also Chair of the OSA Environmental Monitoring Committee from 2014-2016.  To date, Dr. Banerjee has published 5 textbooks, over 135 refereed journal papers, and over 150 conference papers/ presentations, and holds 1 patent.  He has supervised 24 PhD dissertations and 16 MS theses. He also actively participated in the international cooperation of the School of Engineering Sciences (SES) and the School of Optical and Electronic Information (SOEI) of Huazhong University of Science and Technology (HUST), and established new programs for student exchange and talent cultivation.


报告摘要:

报告首先将回顾利用光致折射材料的二维互相关。基于光致折射光束耦合的联合变换相关器,其性能将通过品质参数(例如:差别比、峰-相关能量平面比、峰-噪声比等)对光致折射增益参数、典型参考光的光束比以及信号图像的依赖来决定。此外,三维图像的互相关将通过它们的二维数字全息的互相关引入。用来评估二维图像互相关的重要品质参数将应用于全息图的互相关。品质参数将通过作为二维图像的数字记录全息图以应用于物体高度的鉴定。基于获得的结果以及对应的品质参数作为评估标准,结果展示了对物体表面高度精确识别的前景。


Abstract: 

Correlation of two dimensional (2D) images using photorefractive materials are first reviewed.  The performance of a joint transform correlator based on photorefractive beam coupling is analyzed by determining the dependence of typical figures of merit such as the discrimination ratio, peak-to-correlation plane energy ratio, peak-to-noise ratio, etc. on the photorefractive gain coefficient and beam power ratio using typical reference and signal images.  Furthermore, correlation of three dimensional (3D) images is introduced as the correlation of their 2D digital holograms.  Critical figures of merit used for assessment of 2D correlation of images are applied to the correlation of holograms.  Figures of merit are applied for object height identification using digitally recorded holograms as the 2D images. Results show  the potential for accurate object height recognition based on obtained results corresponding to figures of merit as an assessment metric.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或直接下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第157期


照片


报告题目:从蛋白质结构和动力学到丝纤维和药物开发

From Protein Structure and Dynamics to Silk Fibers and Drug Development


时     间:2019年5月29日10:00-12:00

地     点:武汉光电国家研究中心A101

报 告 人:杨代文  教授, 新加坡国立大学

邀 请 人:叶朝辉  院士

 

报告人简介:

杨代文教授1991年从中国科学院武汉物理与数学研究所毕业获得博士学位,在日本和加拿大接受博士后培训后,于1997年至2000年在加拿大多伦多大学担任高级研究助理,2001年加入新加坡国立大学担任助理教授,2011年晋升为终身正教授。杨代文教授及其课题组专注于核磁共振方法学,蛋白质结构和动力学研究,重组蛋白质蜘蛛丝纤维的生产,基于结构的药物设计,以及针对传染病的蛋白质疫苗的开发。


Biography:

Yang Daiwen obtained the Ph.D. degree from Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences in 1991. After receiving postdoctoral training in Japan and Canada, he worked as a senior research associate at University of Toronto from 1997 to 2000. He joined NUS as an assistant professor in 2001 and was promoted to a tenured full professor in 2011. Professor Yang’s group focuses on researches in NMR methodology, protein structure and dynamics, production of spider silk fibers from recombinant proteins, structure-based drug design, and development of protein-based vaccines against infectious diseases. 


报告摘要:

蛋白质是由氨基酸组成的生物大分子。它们在生物体内发挥各种不可缺少的功能。还有一些蛋白质可以组装形成纤维,如蚕丝和蜘蛛丝。鉴于重要的功能,蛋白质已被深入研究,并且重组蛋白质在医学(作为药物,疫苗,诊断试剂和药物靶标),工业(作为酶)和生物工程(作为材料)中都具有广泛的应用。为了理解蛋白质如何发挥作用并进一步设计它们以实现预期目标,有必要揭示蛋白质结构 - 动力学 - 功能关系。在本演讲中,我将向您们展示使用核磁共振技术获得的蛋白质的结构和动力学以及它们与功能的关系。此外,我将演示如何基于结构设计蜘蛛丝状蛋白质并且最终生产人造丝,如何根据结构和动态信息发现药物先导化合物,以及为什么结构信息对基于蛋白质的疫苗设计很重要。


Abstract: 

Proteins are biopolymers made of amino acids. They perform a variety of functions within organisms, and some proteins can assemble to form fibers such as silkworm silk and spider silk.  Given the important functions, proteins have been studied intensively and recombinant proteins have wide applications in medicine (as drugs, vaccines, diagnostic reagents, and drug targets), industry (as enzymes), and bioengineering (as materials).  In order to understand how proteins function and further engineer them for desired objectives, it is necessary to reveal their structure-dynamics-function relationship.  In this presentation, I will show you the structures and dynamics of a number of proteins as well as their relationship to function, which were obtained using nuclear magnetic resonance (NMR) spectroscopy. Moreover, I will demonstrate how artificial silk can be produced from spider-silk-like proteins designed based on our structures, how drug lead is identified based on structural and dynamic information, and why structural information is important for protein-based vaccine design.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或直接下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第156期


照片


报告题目:第四次工业革命中的有机半导体技术

Organic Semiconductors in the Fourth Industrial Revolution



时     间:2019年5月28日10:00-12:00

地     点:光电国家研究中心A301

报 告 人:Prof. Bernard Kippelen,美国佐治亚理工学院

邀 请 人:周印华  教授

 

报告人简介:

Bernard Kippelen教授是美国佐治亚理工学院电子与计算机工程学院Joseph M. Pettit讲席教授。他的研究兴趣从研究有机纳米薄膜中的基础物理过程(非线性光学行为,电荷传输,光捕获与发射),到可印刷轻质、柔性光电子器件的设计、制备与性能分析。他是佐治亚理工学院欧洲校区创新平台Institut Lafayette (位于法国梅茨) 的共同创始人和主席,并且担任了佐治亚理工学院有机光电子中心主任。同时,Bernard Kippelen教授也是国际光学工程学会会士(SPIE Fellow)和美国光学学会会士(OSA Fellow)。


Biography:

Bernard Kippelen is the Joseph M. Pettit Professor of Electrical and Computer Engineering at the Georgia Institute of Technology, located in Atlanta, GA, USA. His research interests range from the investigation of fundamental physical processes (nonlinear optical activity, charge transport, light harvesting and emission) in organic-based nanostructured thin films, to the design, fabrication and testing of light-weight flexible optoelectronic devices based on hybrid printable materials. He is a co-founder and co-President of the Institut Lafayette, an innovation platform located on Georgia Tech’s European campus Georgia Tech Lorraine (Metz, France), and serves as Director of the Center for Organic Photonics and Electronics on the Georgia Tech campus in Atlanta. He is the fellow of Optical Society of America (OSA) and the fellow of Society of Photo-Optical Instrumentation Engineers (SPIE).


报告摘要:

在这次演讲中,我们将讨论可印刷有机共轭半导体分子和聚合物将如何产生革新性的技术。我们将呈现关于各种固态器件的最新进展,包括有机发光二极管(OLEDs),有机光电探测器(OPDs),有机光伏器件(OPVs)和有机薄膜晶体管(OTFTs)。讲座将着重讲述器件中界面的重要性,也会给出一些例子去说明如何设计界面的电学性质。我们将展示一种简单的薄膜掺杂技术,通过将薄膜浸入杂多酸盐溶液中,使有机半导体薄膜表面被有限深度的掺杂。这种方法将大大降低该类器件的制备成本,简化器件结构,并且可以用于制备全印刷有机器件。为了说明该方法的简易性和通用性,我们将讨论如何构建具有简化结构的高性能有机太阳能电池。最后,我们将介绍近期我们关于有机薄膜晶体管(OTFTs)稳定性研究进展,表明有机光电子器件可以实现比非晶硅器件具有更高的稳定性。


Abstract: 

In this talk, we will discuss how printable organic conjugated semiconducting molecules and polymers are creating new disruptive technologies that are impacting all industries. We will present recent advances in various solid-state device platforms including, organic light-emitting diodes (OLEDs), organic photodetectors (OPDs), organic photovoltaic devices (OPVs), and organic thin-film transistors (OTFTs). We will emphasize the importance of interfaces in devices and show examples on how to engineer their electrical properties. We will present a simple processing technique for the electrical doping of organic semiconductors over a limited depth near the surface of the film that is based on immersing the film into a polyoxometalate solution. Such approached can drastically reduce the fabrication cost of such devices, simplify device architecture, and lead to all-organic devices fabricated by all-additive printing techniques. As an illustration of the simplicity and versatility of this process we will discuss how high-performance organic solar cells with simplified architecture can be implemented. Finally, we will present the results of a detailed operational lifetime study of OTFTs showing that organic photonics and electronics can yield a stability level superior to that of amorphous silicon.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或直接下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第155期

 

照片

 

报告题目:下一代飞秒光纤激光器及其应用
Next Generation Femtosecond Fiber Lasers And Applications

时      间:2019年5月6日10:00-12:00
地      点:武汉光电国家研究中心A101
报 告 人:曹祥东  教授, 武汉虹拓新技术有限责任公司
邀 请 人:谢长生  教授
 
报告人简介:
曹祥东,国家特聘专家,美国罗彻斯特大学光学博士,密西根大学博士后,武汉虹拓新技术有限责任公司董事长,武汉光电国家研究中心兼职教授,湖北欧美同学会·湖北留学人员联合会常务理事,“重点华侨华人创业团队”领军人。曾任西门子资深研究员(DMTS),北方电信、Qtera首席科学家,创立多家高科技公司。发明的100G全光信号处理技术曾荣获CLEO的“Post-Deadline”,研发设计出世界第一个超长距离波分复用传输系统,超高精度色散管理技术入选2012年度OFC“光通信全球六大科技创新”。创立了中国首家光纤飞秒激光器公司,担任科技部973、863、自然科学基金重大仪器专项课题负责人,科技部重大支撑项目PI。

Biography:
Dr. Cao obtained his Ph.D from University of Rochester, continued his Postdoctoral fellowship at the University of Michigan. He is currently an adjunct professor at WNLO. He was a distinguished member of technique staff(DMTS) at Siemens, Chief Scientist at Nortel/Qtera. He has founded/co-foundedFounder multiple high-tech start-ups. He demonstrated world’s first 100G all-optic logic gates, invented world’s first ultralong haul DWDM optical transmission system. His work of ultra-high precision dispersion management was selected as “Six Technologies to Watch” at OFC 2012. He founded China’s first femtosecond fiber laser company, served as project leader and PI for MOST 973, 863, NSF.

报告摘要:
飞秒激光器,尤其是飞秒光纤激光器,已成为科学研究和工业应用中的热点之一。但大规模的商业应用仍面临着一些重大挑战。未来的数字光制造、材料科学和医疗应用对光纤激光器也提出了新的要求,如超小型化、超大功率和数字编码/同步等。最后我们将讨论超大规模相干合束技术。

Abstract:
Femtosecond lasers have become one of the hottest topics for both scientific and industrial applications, especially fiber based femtosecond laser. However, there are still several key challenges to overcome before large scale industrial applications become possible. More importantly future digital photonic manufacturing, material science, and medical applications require new concept of femtosecond fiber lasers such as ultra-compactness, multi-kW power, and digital coding/synchronization. Lastly future ultra-large scale coherent beam combining (CBC) will be discussed.


武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!


第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样
第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html
更早期视频参见 http://whof.wnlo.hust.edu.cn/
或直接下载超星APP“学习通”,在首页搜索“武汉光电论坛”

 

武汉光电论坛第154期

 

报告题目:新材料研究的魅力和影响
Attraction and Impact of New Materials Research


时     间:2019年4月10日10:00-12:00
地     点:武汉光电国家研究中心A101
报 告 人:细野秀雄 教授,东京工业大学
邀 请 人:肖 泽 文   教授
 
报告人简介:
细野秀雄教授是东京工业大学元素战略研究中心的创始主任和荣誉教授、伦敦皇家学会的外籍院士和全球高被引科学家。细野秀雄教授获得诸多国际奖项,包括日本国际奖,Von Hippel奖(美国材料研究学会),James C. McGroddy奖(美国物理学会),Jan Raychman奖(国际信息显示学会),汤森路透引文桂冠奖(物理学)。

Biography:
Dr. Hideo Hosono is a honorary institute professor and the founding director of Materials Research Center for Element Strategy, Tokyo Institute of Technology. He is a foreign fellow of Royal Society of London, a highly cited researcher and have received many awards including Japan Prize, Von Hippel Prize (MRS), James McGroddy Prize (APS), Jan Raychman Prize (SID), Thomson-Reuter Citation Award in Physics.

报告摘要:
在这次讲座中,将介绍三部分亮点研究工作及其研究目的和基本思想:(1)高临界温度铁基超导体的创造:打破以往普遍认定铁元素不利形成超导的观点(2)透明氧化物半导体的创造及在其显示器中的应用:非晶IGZO-TFT应用于驱动大尺寸OLED TV等;(3)室温稳定的电子化合物的实现及用于合成氨的电子化合物催化剂:材料科学的一个主题。

Abstract:
Highlights of this research are summarized as follows:(1) Creation of high Tc Iron-based superconductors Iron with large magnetic moment was believed to be harmful for emergence of superconductivity;(2) Creation of transparent oxide semiconductors and practical implementation to displays TFTs with amorphous oxide semiconductors represented by IGZO are used to drive large-sized OLED TV et al.;(3) Realization of RT stable electride and electride catalyst for ammonia synthesis at condition Research of electride materials is a topic in materials science In this lecture, I introduce three research lights along with motivation and fundamental idea.

 

漫画1漫画2漫画3

 

 

 

武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!


第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样
第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html
更早期视频参见 http://whof.wnlo.hust.edu.cn/
或直接下载超星APP“学习通”,在首页搜索“武汉光电论坛”

武汉光电论坛第153期

 

照片

 

报告题目:光与物质相互作用的效率:从纳米量子光学到纳米生物光子学
Efficiency in The Interaction of Light and Matter: From Nano-quantum Optics to Nanobiophotonics


时     间:2019年4月3日16:00-18:00
地     点:光电国家研究中心A101
报 告 人:Prof. Vahid Sandoghdar,德国马克斯普朗克学会光学研究所
邀 请 人:陈学文  教授
 
报告人简介:
Vahid Sandoghdar教授分别于1987年和1993年在加州大学戴维斯分校和耶鲁大学获得物理学学士学位和博士学位。在法国巴黎高等师范学院博士后研究之后,他来到德国康斯坦茨大学独立开辟了新的研究方向——将单分子光谱学、扫描探针显微术和量子光学相结合。2001年,他在瑞士苏黎世联邦理工学院物理化学实验室获得讲席教授职位;2011年,他受聘成为新成立的位于埃尔朗根的马克斯普朗克学会光学研究所主任, 同时获聘德国“洪堡教授”,任教埃尔朗根-纽伦堡大学。作为发起人,他推动马普学会、埃尔朗根-纽伦堡大学和大学医院成立了物理与医学研究中心,这一研究中心旨在利用物理和数学的方法解决医学研究中的基础性问题。
Sandoghdar教授是纳米光学的奠基人之一,融合各种技术和研究领域来探究在纳米尺度下光与物质相互作用的基本物理现象。他目前的研究方向涵盖了量子光学,表面等离子激元、超高分辨率显微术和纳米生物物理学。

Biography:
Vahid Sandoghdar obtained his B.S. in physics from the University of California at Davis in 1987 and Ph.D. in physics from Yale University in 1993. After a postdoctoral stay at the Ecole Normale Supérieure in Paris he moved to the University of Konstanz in Germany, where he started a new line of research to combine single molecule spectroscopy, scanning probe microscopy and quantum optics. In 2001, he accepted a chair at the Laboratory of Physical Chemistry at ETH in Zurich, Switzerland. In 2011, he became director at the newly established Max Planck Institute for the Science of Light in Erlangen and Alexander von Humboldt Professor at the University of Erlangen-Nuremberg in Germany. He is the founder of the new Max-Planck-Zentrum für Physik und Medizin, a joint research center that aims to address questions in fundamental medical research with physical and mathematical methods.
Sandoghdar is one of the founders of the field of Nano-Optics, which merges various methods and research areas to investigate fundamental issues in the interaction between light and matter at the nanometer scale. His current research ranges from quantum optics, plasmonics and ultrahigh resolution microscopy to nanobiophysics.

报告摘要:
纳米尺度光与物质的相互作用是诸如吸收、辐射、散射等基础光学过程的核心问题。在过去的二十年中,我们实现了一系列的实验来以可控的方式研究单光子、单分子、单纳米颗粒之间的相互作用。本次报告中,我将会展示我们实现的单光子和单分子接近100%效率的耦合的相关实验研究。同时,我还会阐述一些基本物理机理是如何在量子光学中发挥重要作用的,例如,干涉,它可以帮助我们以很高的空间和时间分辨率来探测诸如病毒,小蛋白质分子等生物纳米物质。

Abstract:
Light-matter interaction at the nanometer scale lies at the heart of elementary optical processes such as absorption, emission or scattering. Over the past two decades, we have realized a series of experiments to investigate the interaction of single photons, single molecules, and single nanoparticles in a controlled fashion. In this presentation, I will report on recent studies, where we reach near-unity efficiency in the coupling of single photons to single molecules. Furthermore, I will show how the underlying mechanisms that play a central role in quantum optics, e.g. interference, help detect single biological nanoparticles such as viruses and small proteins with high spatial and temporal resolutions.


武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!


第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样
第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html
更早期视频参见 http://whof.wnlo.hust.edu.cn/
或直接下载超星APP“学习通”,在首页搜索“武汉光电论坛”

 


武汉光电论坛第152期

 

auto_8290.png

 

报告题目:纳米结构智能薄膜及其传感和驱动应用
Nanostructured Smart Thin Films and Its Sensing and Actuation Applications

时     间:2019年3月27日10:00-12:00
地     点:光电国家研究中心A101
报 告 人:傅永庆  教授, Northumbria University
邀 请 人:王鸣魁  教授
 
报告人简介:
傅永庆教授就职于英国诺桑比亚大学,在微纳米材料技术,压电MEMS器件,智能材料研究,特别是在薄膜表面声波微流体及芯片及薄膜形状记忆合金和聚合物研究等领域有很高的国际声望。目前已发表著作两部, SCI期刊论文数为308篇 (SCI H-index为38,SCI 总引用次数>5800次)。部分文章发表在相关领域的顶级期刊上,如Progress in Materials Science, Nature Communications, Nano Letters, Advanced Drug Delivery Review 等,并受邀请做重要国际学术会议主题报告超过20次。傅永庆教授是国际薄膜协会欧洲区主席、英国物理学会会员、美国机械工程学会会员、国际电子电气工程协会会员,担任Editorial Board member for Scientific Reports (Nature Group)编委,Associate editor for Nanoscience and Nanotechnology Letter (SCI Journal)副主编等职务。

Biography:
Richard (YongQing) Fu is a professor in the Faculty of Engineering and Environment, University of Northumbria at Newcastle, UK. He was a Reader in Thin Film Centre in University of West of Scotland, Glasgow, UK, and a lecturer in Heriot-Watt University, Edinburgh, UK. He obtained his PhD degree from Nanyang Technological University, Singapore, and then worked as a Research Fellow in Singapore-Massachusetts Institute of Technology Alliance, and a Research Associate in University of Cambridge.
He has extensive experience in smart thin film/materials, biomedical microdevices, energy materials, lab-on-chip, micromechanics, MEMS, nanotechnology, sensors and microfluidics. He has established a worldwide reputation from his pioneer research work on shape memory films, piezoelectric thin films, nanostructured composite/films for applications in MEMS, sensing and renewable energy applications。He published over 350 science citation index (SCI) journal papers (including Nat. Comm., Prog. Mater Sci, Nano Energy, Nano Lett., Chem. Mater., J Mater Chem A, Advanced Drug Delivery Review, etc.) 2 books, 20 book chapters, and over 120 conference papers. His current SCI H-index is 44 with over 8000 citations, and his Google scholar H-index is 53 (up to Oct 2018).

报告摘要:
本次讲座将重点讨论具有微工程和纳米结构智能材料在集成传感器、微执行器、微流体和芯片上实验室应用的最新工作。这些智能材料的选择实例包括:形状记忆合金薄膜和微执行器以及可用于显微外科应用的纳米复合形状记忆聚合物;可用于微流体学和芯片上实验室应用的压电薄膜材料;以及用于传感和可再生能源的纳米结构氧化物器件。

Abstract:
This talk will focus on recent work of micro-engineering and nanostructuring of smart materials for integrated sensors, microactuators, microfluidic and lab-on-chip applications. The selected examples for these smart materials include shape memory alloy films and microactuators and nanocomposite shape memory polymer which can be used for microsurgery applications; piezoelectric thin film materials which can be explored for mcirofluidics and lab-on-chips applications ; and a few examples of nanostructured oxides devices for sensing and renewable energy applications.


武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!


第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样
第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html
更早期视频参见 http://whof.wnlo.hust.edu.cn/
或直接下载超星APP“学习通”,在首页搜索“武汉光电论坛”

 

 

武汉光电论坛第151期


图片1


报告题目:医学影像分析与手术模拟——人工智能和虚拟现实在医学中的应用

Medical Image Analysis and Surgical Simulation – AI and VR Applications for Medicine


时     间:2019年1月14日10:00-12:00

地     点:光电国家研究中心A101

报 告 人:王平安  教授, 香港中文大学

邀 请 人:李   强  教授

 

报告人简介:

王平安博士现任香港中文大学计算机科学与工程系教授。自1999年以来,他一直担任香港中文大学虚拟现实、可视化与图像学研究中心主任,并曾担任计算机科学与工程系系主任(2014-2017)和研究生部主任(2005-2008和2011-2016)。他自2006年起担任中国科学院深圳先进技术研究院人机交互中心主任,并于2007年被中国教育部评为“长江学者讲座教授”。发表了超过470篇同行评审论文,包括190篇国际期刊论文和280篇国际会议论文。他的团队近年来在医学影像分析方面获得三项最佳论文奖,包括MIA-MICCAI 2017年最佳论文奖。他的研究兴趣包括医学应用的人工智能和虚拟现实,手术模拟,可视化,计算机图形学和人机交互。


Biography:

Dr. Pheng Ann Heng is a professor at the Department of Computer Science and Engineering at The Chinese University of Hong Kong (CUHK). He has served as the Director of Virtual Reality, Visualization and Imaging Research Center at CUHK since 1999.  He has also served as the Department Chairman (2014-2017) and Head of Graduate Division (2005-1008 and 2011-2016). He has served as the Director of Center for Human-Computer Interaction at Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences since 2006 and has been appointed by China Ministry of Education as a Cheung Kong Scholar Chair Professor in 2007. He is the author of over 470 peer-reviewed publications, including 190 international journal articles and 280 international conference papers. His group has received three best paper awards in medical image analysis in recent years, including MIA-MICCAI 2017 best paper award. His research interests include artificial intelligence and virtual reality for medical applications, surgical simulation, visualization, graphics and human-computer interaction.


报告摘要:

近年来,深度学习在一些具有挑战性的高难度问题中取得了巨大成功,这其中就包括深度学习在医学图像分析中的应用。王博士团队率先提出并采用三维卷积神经网络从MR图像中自动检测大脑微出血。为了减少肺结节自动检测中的假阳性,他们设计了考虑多级上下文信息的三维卷积神经网络框架,并进一步提出了一种新颖高效的三维神经网络,配备了三维深度监督机制,从而全面解决了三维网络优化难点和医学训练样本不足的挑战。他们对深度学习的成功应用涵盖了广泛的医学图像模式,包括组织病理学成像,超声成像,MR/CT成像,皮肤镜成像和结肠镜检查视频。同时,虚拟现实在临床医疗中的应用也取得了长足进步,基于虚拟现实的手术模拟成为一种经济且有效的临床培训手段。王博士团队通过医学成像,运动跟踪,物理模拟,触觉反馈和视觉呈现的智能集成来构建逼真的虚拟环境,从而实现提供外科手术专业培训的目标。在此次演讲中,王博士将介绍他们使用深度学习进行医学图像分析的最新工作,以及他们开发的基于虚拟现实的一系列手术模拟系统。


Abstract: 

There are many successful applications of deep learning in solving challenging and difficult problems in recent years. An excellent example is its application in medical image analysis. Dr. Heng’s group is the first to employ 3D convolutional neural networks for automatic detection of cerebral micro-bleeds from MR images. They also proposed multi-level contextual 3D convolutional neural network framework for false positive reduction in automated pulmonary nodule detection. They further proposed a novel and efficient 3D CNN equipped with a 3D deep supervision mechanism to comprehensively address the challenges of optimization difficulties of 3D networks and inadequacy of medical training samples. Their successful deep learning applications cover a wide spectrum of medical image modalities, include histopathological imaging, ultrasound imaging, MR/CT imaging, dermoscopy imaging and colonoscopy videos. Concurrently, there are also many significant and promising developments in virtual reality that are applicable for medical applications. Virtual reality based surgical simulation can provide a cost-effective and efficient way to train novices. In order to achieve the goal of delivering specialized training of a surgical procedure, one practical solution is to construct a realistic virtual environment through intelligent integration of medical imaging, motion tracking, physically based simulation, haptic feedback and visual rendering. In this talk, Dr. Heng shall present their recent works in using deep learning for medical image analysis and introduce some VR-based surgical simulators they have developed.


武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或直接下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第150期


照片


报告题目:表面增强拉曼光谱在细胞生物和电化学研究中的应用

Application of Surface Enhanced Raman Spectroscopy in Cell Biology and Electrochemistry


时      间:2019年1月4日14:30-16:00

地      点:光电国家研究中心A101

报 告 人:任  斌  教授, 厦门大学

邀 请 人:王  平  教授

 

报告人简介:

任斌教授,分别于1992年和1998年在厦门大学化学系获得学士和博士学位。现任厦门大学化学化工学院副院长,固体表面物理化学国家重点实验室副主任,美国化学会Analytical Chemistry期刊副主编。主要从事针尖增强拉曼光谱(TERS)、表面增强拉曼光谱(SERS)以及纳米和光谱电化学新方法的发展、仪器研制及其在表、界面过程及细胞生物体系的应用研究。获得国家基金重点项目、重大项目和科学仪器基础专项以及科技部重大仪器设备开发专项和重大科学研究计划课题等基金项目的资助。迄今已发表SCI论文200多篇,包括Nature Nanotechnol.、Nature Commun.、JACS、Angew. Chem.、Chem. Rev., Chem. Soc. Rev.等期刊,他引14000余次。2002-2003年受洪堡基金(AvH)资助在德国Fritz-Haber研究所从事科研合作,2008年获国家杰出青年科学基金,2016年入选第二批国家“万人计划”科技创新领军人才和教育部“长江学者”特聘教授。


Biography:

Professor Ren Bin received his bachelor's degree and doctor's degree from the Department of Chemistry, Xiamen University in 1992 and 1998, respectively. He is currently the Vice Dean of the College of Chemistry and Chemical Engineering, Xiamen University, Vice Director of the State Key Laboratory of Physical Chemistry of Solid Surfaces and Associate Editor of Analytical Chemistry, American Chemical Society. He is mainly engaged in the development of Tip-enhanced Raman spectroscopy (TERS), surface-enhanced Raman spectroscopy (SERS), new methods of nanochemistry and spectroelectrochemistry, instrumentation and their applications in surface, interface processes and cell and biological systems. He has been supported by key projects of scientific instruments of NSFC, as well as projects of major instruments and equipment development and major scientific research projects of the Ministry of Science and Technology. He has published more than 200 SCI papers, including Nature Nanotechnol., Nature Commun., JACS, Angew. Chem., Chem. Rev., Chem. Soc. Rev., with more than 14,000 citations. In 2002-2003, he was funded by Alexadner von Humboldt Foundation to work at Fritz-Haber Institute in Germany. In 2008, he was awarded the National Outstanding Youth Science Fund. In 2016, he was selected as the second batch of national "ten thousand people plan" and the Changjiang Scholar professor of the Ministry of Education.


报告摘要:

表面增强拉曼光谱(SERS)利用Ag、Au等纳米结构,能显著增强吸附在纳米结构表面的分子的拉曼信号,并以超高表面灵敏度获得样品自身的指纹振动信息,是极具前景的表界面和生物分析检测技术。但是,由于生物细胞体系自身的复杂性,以及光-纳米材料表面-生物体系三者间异常复杂的相互作用,使得SERS检测结果的可靠性相对较差,也制约了其在生物医学领域内的广泛应用。本次报告将讨论SERS在生物检测中的可靠性问题,以及存在机遇和挑战。为了拓展拉曼光谱在电化学动态反应过程表征中的应用,我们建立了一种基于电化学表面增强拉曼光谱技术的电化学显微镜,可以在电化学反应过程中,利用拉曼信号强度变化,重构电极表面分子局域的电化学电流,获得局域的电化学信息。


Abstract: 

Surface-nhanced Raman Spectroscopy (SERS) is a promising technique, which utilizes nanostructures such as Ag and Au to enhance the Raman signal of molecules adsorbed on the surface of nanostructures and obtain the fingerprint vibrational information of samples with an ultra-high surface sensitivity. However, due to the complexity of biological systems and the extremely complex interaction between light, nanomaterial surface and biological system, the reliability of SERS is relatively poor, which also restricts its wide application in the field of biomedicine. This report will discuss the reliability of SERS in biological detection, as well as the opportunities and challenges. In order to expand the application of Raman spectroscopy in the characterization of electrochemical dynamic reaction processes, an electrochemical microscope on the basis of electrochemical surface-enhanced Raman spectroscopy (SERS) technology was established. The local electrochemical current of the molecule on the electrode surface could be reconstructed by the change of Raman signal intensity, and the local electrochemical information could be obtained during the process of electrochemical reaction.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或直接下载超星APP“学习通”,在首页搜索“武汉光电论坛”


责任编辑:胡晓莺


武汉光电论坛第149期


照片


报告题目:基于大自然的创新

Nature-inspired Innovation


时     间:2018年12月10日10:00-12:00

地     点:光电国家研究中心A101

报 告 人:王钻开  教授, 香港城市大学

邀 请 人:周   军  教授

 

报告人简介:


王钻开博士,香港城市大学机械工程学系教授。2000年毕业于吉林大学,获机械工程学士学位,2003年在中国科学院上海微系统与信息技术研究所,获微电子学硕士学位,2008年获伦斯勒理工学院机械工程博士学位, 2009年在美国哥伦比亚大学生物医学工程进行博士后研究,然后加入香港城市大学任教。2016年入选教育部“长江学者”讲座教授。

王钻开教授长期从事仿生机械、表面工程等领域的研究工作,他领导的研究小组在拓扑机械系统体系的基础研究及工程应用等方面取得了一系列原创和突破性成果。通过调控传统机械系统中通常忽略的拓扑结构,扩展了传统工程的界限。尤其,首次发现了液滴饼状弹跳现象,揭示了固/液动态接触时间的终极极限这一核心问题;提出拓扑流体二极管概念,并开发了一系列无源自驱动器件;首次开发水下仿生可逆黏附胶带和仿生有腿软机器人。过去四年在Science、Science Advances、Nature Physics、Nature Communications等国际权威综合杂志发表论文9篇,另外在Physical Review Letters、Nano Letters、ACS Nano、Advanced Materials、 Advanced Functional Materials 等顶级专业期刊发表论文几十篇。荣获首届香港科学院青年院士(2018)、香港城市大学 President Lectureship(首个以正教授身份获得) 、香港城市大学杰出研究奖(2017,首个以副教授身份荣获senior category)、国际仿生学会杰出青年奖(2016)、美国光学学会青年科学奖(2016)、中国机械工程学会上银优秀机械博士论文奖优秀奖(2016,指导教师)、教育部杰出留学生奖(2007)、美国材料学会杰出研究生银奖(2007)。指导博士研究生荣获2016年美国材料学会杰出研究生金奖、2015年美国材料学会杰出研究生银奖、香港青年科学家奖(工程类,2015,每年1人)。其中,两位博士毕业生入选第十三批国家“千人计划”青年项目。


Biography:

Dr. Zuankai Wang is currently a professor in the Department of Mechanical Engineering at the City University of Hong Kong, and one of the founding members of Young Academy of Science of Hong Kong. He earned his B.S. degree in Mechanical Engineering from Jilin University in 2000 and Master degree in Microelectronics from Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, in 2003, and Ph. D. degree in Mechanical Engineering at Rensselaer Polytechnic Institute in 2008. After one year postdoc training in Biomedical Engineering at Columbia University, he joined in the City University of Hong Kong in September 2009 as an assistant professor.  Over the past four years, his research group has published 9 papers in Nature/Science Series Journals. His work has been included in the Guinness Book of World Records, and highlighted in Nature, Nature Physics and many other media coverages. Prof. Wang has received many awards including the 35th World Cultural Council Special Recognition Award (2018), President’s Lectureship at City University of Hong Kong (2018, the first professor to deliver this lecture), Outstanding Research Award (2017, the first associate professor to win this award) and President’s Award at the City University of Hong Kong (2017, 2016), Changjiang Chair Professor by Ministry of Education of China (2016). Outstanding Youth Award conferred by the International Society of Bionic Engineering (2016), OSA Young Scientist Award (2016). The Ph.D. students he supervised have won a number of prestigious awards including Young 1000 Talent Plan (2017, two PHD graduates), MRS Graduate Student Gold Award (2016 Fall Meeting), Hiwin Doctoral Dissertation Award (2016), Hong Kong Young Scientist Award (2015), and MRS Graduate Student Silver Award (2015 Spring Meeting). 


报告摘要:

人类的进步标志着五大创新浪潮。 每一波浪潮都改变了我们的行业和社会,同时也伴随着资源消耗,污染和能源/水资源短缺。 相比之下,经过数十亿年的发展,自然界已经形成了以绿色能量和复原力为特征的非凡原则。 本报告将重点阐述以仿生工程为核心的创新浪潮将如何解决我们所面临的巨大挑战,如水、能源和健康工程。


Abstract: 

The progress of humankind has been marked by five main waves of innovation. Each wave has transformed our industries and societies, yet is also coupled with the consumption of resources, pollution, and energy/water shortage. In contrast, honed by billion years’ evolution, nature has developed extraordinary principles which are characterized with green energy and resilience. This talk focuses on how nature-inspired innovation will address the grand challenges facing us such as water, energy and health engineering. 



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或直接下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第147期


照片


报告题目:支链共轭聚合物在有机太阳能电池中的应用

Application of Branched Conjugated Polymers in Organic Solar Cells


时     间:2018年11月1日9:00-11:00

地     点:光电国家研究中心A101

报 告 人:李永舫  院士,中国科学院化学研究所

邀 请 人:屠国力  教授



报告人简介:

李永舫博士,研究员,中国科学院院士,苏州大学特聘教授,中国化学会常务理事,北京能源与环境学会会长。华东化工学院(现名华东理工大学)77级本科、79年提前读研、1982年获硕士学位;复旦大学化学系物理化学专业1986年获博士学位;1986-1988年,中国科学院化学研究所跟随钱人元先生进行博士后研究;1988年留化学所工作,1993年晋升研究员。主要从事聚合物太阳电池光伏材料和器件以及钙钛矿太阳电池等方面的研究。已发表研究论文600多篇,国内外学术会议邀请报告120多次,发表论文已被SCI他人引用34000余次,h-因子93。


Biography:

Professor Dr. Yongfang Li works in the Institute of Chemistry, Chinese Academy of Sciences. He is academician of Chinese Academy of Sciences, distinguished professor of Soochow University, executive director of the Chinese Chemical Society and president of Beijing Energy and Environment Society. Professor Li received his master degree from East China University Of Science And Technology in 1982. He received his Ph.D. degree from department of Chemistry, Fudan University, China in 1986. 1986-1988, he was engaged in postdoctoral research in Institute of Chemistry Chinese Academy of Sciences.From 1988 to now, he works in Institute of Chemistry Chinese Academy of Sciences, and appointed as a research in 1993. He has engaged in the research and application of polymer solar cell and perovskite solar cells. He has published about 600 academic papers, declared more than 120, his published papers have been cited by others more than 34,000 with an h-factor of 93.


报告摘要:

聚合物太阳电池具有器件结构和制备过程简单、重量轻、可制备成柔性和半透明器件等突出优点,成为国内外热点研究领域之一。本讲座将介绍聚合物太阳电池的发展历史、光伏材料设计中的关键科学问题及其最新研究进展,包括带共轭侧链的二维共轭聚合物给体光伏材料、非富勒烯n-型有机半导体受体光伏材料、低成本高效光伏材料等方面的最新进展。另外,还将介绍钙钛矿太阳电池、尤其是全无机钙钛矿太阳电池的最新研究进展。


Abstract: 

Polymer solar cells have the outstanding advantages of simple structure, light weight, easy preparation process and can be flexible or semi-transparent, which have been one of the hot topic research fields in the world. We will review the history of polymer solar cells, key scientific issues in photovoltaic material design and their latest research progress, including the two-dimensional conjugated polymer donor photovoltaic material with conjugated side chains, n-type organic semiconductor acceptor based on non-fullerene photovoltaic material, low cost and efficient photovoltaic materials. In addition, we will also introduce the latest research progress of perovskite solar cells, especially all-inorganic perovskite solar cells.


武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!


第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第148期


1


报告题目:高效太阳能转换的材料创新

Materials Innovation for Efficient Solar Energy Conversion


时     间:2018年11月1日15:00-17:00

地     点:光电国家研究中心A101

报 告 人:杨世和  教授,北京大学深圳研究生院

邀 请 人:陈   炜  教授



报告人简介:

杨世和教授本科毕业于中山大学高分子化学与物理专业,在美国莱斯大学获物理化学博士学位,师从于化学诺贝尔奖获得者Richard E. Smalley教授;在加入香港科技大学之前,曾在美国阿贡国家实验室和多伦多大学做博士后研究(师从于另一位诺贝尔奖获得者John C. Polanyi教授)。现任北京大学深圳研究生院广东纳米微材料研究重点实验室主任。他的研究兴趣包括化学和物理的有限系统、团簇、纳米材料和能量转换等方面。他和合作者在团簇、富勒烯/金属富勒烯,新型纳米材料化学、新一代太阳能电池、太阳能燃料和其他能源转换装置等领域的科学认识和发展做出了很多贡献。他目前的兴趣集中在太阳能纳米科学和纳米技术上。目前为止,他已经发表了520多篇国际期刊论文和10多篇专利,论文被引用超过30000余次,h影响因子94。他连续两次获得国家自然科学奖二等奖。目前他还是多个国际期刊的编委会成员,包括ChemNanoMat (VCH-Wiley), Sustainable Energy (Hans Publishers), International Journal of Nanotechnology (Inderscience Enterprises Ltd.)等。


Biography:

Shihe Yang received his B.S. in Polymer Chemistry/Physics from Sun Yat-Sen University in China and Ph.D. in Physical Chemistry (with the Nobel Laureate Prof. Richard E. Smalley). He did post-doctoral research at Argonne National Laboratory and the University of Toronto (with the Nobel Laureate Prof. John C. Polanyi) before joining the faculty at The Hong Kong University of Science and Technology, where he became a full professor. He is now Director of Guangdong Key Lab of Nano-Micro Material Research, Shenzhen Graduate School, Peking University, Shenzhen. His research interests include chemistry and physics of clusters, nanomaterials, soft matter and energy conversion. He and co-workers made contributions to the understanding and development of cluster science, fullerenes/metallofullerenes, soft materials interfaces, novel nanomaterials chemistry, new generation solar cells, solar fuels, and other energy conversion devices. His current interest is focused on solar energy nanoscience and nanotechnology. He is the author/co-author of over 520 international journal publications and ~10 patents with > 30,000 citations (Google Scholar h-index > 94). His scientific research has been recognized by, among others, two State Natural Science Awards. He is currently an editorial board member of several international journals including ChemNanoMat (VCH-Wiley), Sustainable Energy (Hans Publishers), International Journal of Nanotechnology (Inderscience Enterprises Ltd.), etc.


报告摘要:

多尺度材料的装配和集成对新一代太阳能器件的运行至关重要,需要基础科学的设计和阐述。关键是要了解和利用定制材料的内在特性,以及材料组件之间的相互作用,从而实现所需要的功能。我将介绍我们在通过溶液过程连接和组装各种纳米结构方面的最新成果。这些新型材料已经被用做高效太阳能转换装置的高效光吸收层,载流子传输层,界面层和表面反应促进剂,特别是在钙钛矿太阳能电池和光电化学电池中。并将讨论这些结果对新太阳能装置的未来发展的影响。


Abstract: 

Materials assembly and integration at multiple length scales are critical to the functioning of new generation solar energy devices, and call for basic science informed design and elaboration. The key is to understand and leverage the intrinsic properties of the tailored materials as well as the interplay between the material components so as to realize the desired functions. In this contribution, I will present some of our recent results in interfacing and assembling various nanostructures by solution processes. The novel materials have been explored as efficient light absorbers, carrier transporters, interlayers and surface reaction promoters for high-performance solar energy conversion devices, particularly perovskite solar cells and photoelectrochemical cells. Implications of these results on the future development of new solar energy devices will be discussed.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第146期


照片_看图王


报告题目:太赫兹波前获取与调控

Acquisition and Modulation of Terahertz Wave Front


时     间:2018年9月7日10:00-12:00

地     点:光电国家研究中心A101

报 告 人:张    岩  教授,首都师范大学

邀 请 人:张新亮  教授



报告人简介:

张岩,首都师范大学教授,超材料与器件北京市重点实验室主任。1999年获得中科院物理所光学博士学位,先后在日本山形大学,香港理工大学,德国斯图加特大学,香港科技大学,美国伦斯特理工大学以及德国康斯坦茨大学从事合作研究。目前主要从事太赫兹波谱与成像,超构表面器件等方面研究,发表SCI期刊论文220余篇,Google H因子38。


Biography:

Prof. Dr. Yan Zhang, director of Beijing Key Lab for Matematerials and Devices. He was elected to the Program for New Century Excellent Talents in University, Beijing Science Nova Program, Beijing BaiQianWan Talents Program, and Beijing Great Wall Scholar.   

Prof. Zhang received his bachelor and master degrees from Harbin Institute of Technology and doctor degree from Institute of Physics, Chinese Academy of Science. He has worked in Yamagata University, Japan, Hong Kong Polytechnic University, Stuttgart University, Germany, Hong Kong University of Science and Technology, Rensselaer Polytechnic Institute, USA, and University Konstanz, Germany. His research interests include terahertz imaging and spectroscopy, surface plasmonic optics, optical information processing. He has published more than 220 prereviewed papers and delivered more than 30 invited talks. 



报告摘要:

太赫兹辐射具有很多独特的优点,在通讯和成像领域具有重要的应用。相比太赫兹的源和探测器,太赫兹的功能器件都还不成熟,阻碍了太赫兹技术的广泛应用。本报告介绍首都师范大学超材料与器件北京市重点实验室在太赫兹波前获取和调控方面取得的进展。利用自主研发的太赫兹脉冲波焦平面成像系统实现太赫兹辐射的频率、振幅、相位以及偏振态的测量,并利用这套系统实现对涡旋光束和太赫兹波段表面等离子体器件的的表征。利用超构表面技术实现太赫兹波前的调控,设计了超薄太赫兹平板透镜,长焦深透镜,多焦点透镜、太赫兹全息、分色成像全息以及偏振选择透镜等器件。并利用半导体材料在太赫兹波段特殊的光电调控特性,提出了太赫兹波前调制器,实现了基于动态超构表面的太赫兹波前调控。


Abstract: 

Due to many unique advantages of terahertz radiation, it has important potential applications in the field of communication and imaging. Compared with the sources and detectors of terahertz, the functional devices of terahertz are still immature, which hinders the wide application of terahertz technology. This report describes the progress of terahertz wavefront acquisition and modulation in Beijing Key Laboratory of Metamaterials and Devices, Capital Normal University. The frequency, amplitude, phase and polarization of terahertz radiation are measured by a self-developed terahertz pulsed focal plane imaging system. The vortex beam and surface plasmon devices in terahertz band are characterized by this system. The terahertz wavefront can also be modulated by metasurface technology. The ultra-thin terahertz flat lens, long focal depth lens, multi-focal lens, terahertz holography, color-splitting imaging holography and polarization-selective lens are designed. A terahertz wavefront modulator is proposed based on the photoelectric characteristics of semiconductor materials in the terahertz band, and the terahertz wavefront modulation based on the dynamic metasurface is also realized.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第145期


auto_6551.png


报告题目:光纤传感

Optical Fiber Sensing


时     间:2018年7月5日15:30-17:00

地     点:光电国家研究中心A101

报 告 人:Prof. Perry Shum, 新加坡南洋理工大学

邀 请 人:光电子器件与集成功能实验室

 

报告人简介:

沈平教授于1995年获得英国伯明翰大学电子与电气工程博士学位。1999年,他加入新加坡南洋理工大学电子与电子工程学院。 自2014年起,他被任命为光纤技术中心主任,并担任多个国际会议的主席、委员会成员和国际顾问。 他是IEEE Photonics Society Singapore Chapter(前身为IEEE LEOS)的创始成员,目前担任OSA新加坡分会的主席。 沈平教授已发表超过500篇期刊和会议论文,研究领域涉及特种光纤以及光纤光器件等,H因子达到38。近年来,他的论文年引用量高达500-800次。沈平教授是国际光学工程学会会士(SPIE Fellow)和美国光学学会会士(OSA Fellow)。


Biography:

Prof Shum received his PhD degree in Electronic and Electrical Engineering from the University of Birmingham, UK, in 1995. In 1999, he joined the School of Electrical and Electronic Engineering, NTU.  Since 2014, he has been appointed as the Director of Centre for Optical Fibre Technology and was the chair, committee member and international advisor of many international conferences. He was also the founding member of IEEE Photonics Society Singapore Chapter (formerly IEEE LEOS). He is currently the chairman of OSA Singapore Chapter. Prof Shum has published more than 500 journal and conference papers with his research interests being in the areas of speciality fibres and fibre-based devices.  His H-index is 38.  In recent few years, his publications have been cited about 500-800 times per year.  He is SPIE Fellow and OSA Fellow.  


报告摘要:

近年来,光纤器件已经被广泛部署。利用光纤作为传感介质具有诸多优势,其中包括无源操控、质量轻、抗射频干扰和电磁干扰、灵敏度高、尺寸小、耐腐蚀、易于复用和潜在的低成本特性。本报告将介绍几种新型光纤传感器及其应用,其中包括基于光纤布拉格光栅(FBG)、光子晶体光纤(PCF)、特种光纤传感器,以及分布式光纤传感系统。作为天生传感器件的FBG,经巧妙设计可以实现二维(2D)倾斜传感、位移传感、加速度传感和腐蚀传感等功能;同时将介绍基于PCF的倏逝场吸收传感器,PCF诱导的Mach-Zehnder干涉仪和用于温度和折射率传感的Fabry-Perot折射计;最后,基于局部表面等离子体共振(LSPR)效应,将验证附着金纳米颗粒的纳米尺寸光纤尖端在活细胞指数生物传感中的应用。


Abstract: 

Optical fiber-based devices have been widely deployed in recent years.  There are many advantages of using fiber as a sensor. These include electrically-passive operation, light weight, immunity to radio frequency interference and electromagnetic interference, high sensitivity, compact size, corrosion resistance, easily multiplexing and potentially low cost. Several novel fiber-based sensors and technologies developed are presented here, including fiber Bragg grating (FBG) based sensors, photonic crystal fiber (PCF) based sensors, specialty fiber-based sensors and distributed fiber sensing systems. FBGs as instinctive sensors, are ingeniously designed as two-dimensional (2D) tilt sensors, displacement sensors, accelerometers and corrosion sensors here; PCF based evanescent field absorption sensor, PCF induced Mach-Zehnder interferometer and Fabry-Perot refractometer for temperature and refractive index sensing are presented; based on localized surface Plasmon resonant (LSPR) effect, nano-sized fiber tip with gold nanoparticles are demonstrated for live cell index bio-sensing applications.




武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第144期


144光电论坛



报告题目:纳米技术在能源、环境和织物的应用

Nanotechnology for Energy, Environment and Textile


时     间:2018年7月4日15:00-16:30

地     点:光电国家研究中心A101

报 告 人:崔  屹, 美国斯坦福大学

邀 请 人:孙永明   教授



报告人简介:

崔屹教授现为美国斯坦福大学材料科学与工程系终身教授。1998年在中国科学技术大学获理学学士学位,2002年在哈佛大学获博士学位,2003-2005年在美国加州大学伯克利分校从事博士后研究,2005年加入斯坦福大学材料科学与工程系,2010年获得终身教职。崔教授主要从事纳米材料在能源、光伏、拓扑绝缘材料、生物和环境领域的研究工作,发表论文400多篇,其中Science 8篇,Nature 2篇,Nature子刊73篇,Science子刊6篇,被引用超过12万次,H因子为164,授权国际专利40余件。他在2014年美国汤森路透(Thomson Reuters)集团在线公布的全球材料科学领域 “高被引科学家(Highly-Cited Researchers)”名单中排名第一,被誉为“世界最具影响力的科学头脑”。他是美国材料学会(Materials Research Society)会士、美国电化学会(Electrochemical Society)会士、英国皇家化学学会(Royal Society of Chemistry)会士,世界知名科学期刊《纳米快讯》(Nano Letters)副主编,美国湾区太阳能光伏联盟(Bay Area Photovoltaics Consortium)主任以及美国电池500联盟(Battery500 Consortium)主任。他创立了Amprius公司、4C Air公司和EEnovate Technology公司。获得过一系列国际重要奖项,包括2017年度布拉瓦尼克青年科学家奖、2015年MRS Kavli Distinguished Lectureship in Nanoscience, Resonate Award for Sustainability、2014年Nano Energy奖、2014年Blavatnik(布拉瓦尼克)国家奖入围奖、2013年IUPCA(国际理论化学与应用化学联合会)新材料及合成杰出奖、2011年哈佛大学威尔逊奖、2010年斯隆研究基金、2008年KAUST研究奖、2008年ONR 年轻发明家奖、2007年MDV创新奖等,2004年入选“世界顶尖100名青年发明家”。


Biography:

Yi Cui is a Professor in the Department of Materials Science and Engineering at Stanford University. He received B.S. in Chemistry in 1998 at the University of Science and Technology of China (USTC), Ph.D in 2002 at Harvard University. After that, he went on to work as a Miller Postdoctoral Fellow at University of California, Berkeley. In 2005 he became an Assistant Professor in the Department of Materials Science and Engineering at Stanford University. In 2010 he was promoted with tenure. His current research is on nanomaterials for energy storage, photovotalics, topological insulators, biology and environment. He has founded three companies to commercialize technologies from his group: Amprius Inc., 4C Air Inc. and EEnovate Technology Inc. He is a fellow of Materials Research Society, Electrochemical Society and Royal Society of Chemistry. He is an Associate Editor of Nano Letters. He is a Co-Director of the Bay Area Photovoltaics Consortium and a Co-Director of Battery 500 Consortium. He is a highly proliferate materials scientist and has published ~400 research papers. In 2014, he was ranked NO.1 in Materials Science by Thomson Reuters as “The World’s Most Influential Scientific Minds”. His selected awards include: Blavatnik National Laureate (2017), MRS Kavli Distinguished Lectureship in Nanoscience (2015), the Sloan Research Fellowship (2010), KAUST Investigator Award (2008), ONR Young Investigator Award (2008), Technology Review World Top Young Innovator Award (2004).


报告摘要:

纳米技术为解决能源危机和环境污染等问题提供了全新的技术支撑。在过去的十多年中,我领导的研究团队运用纳米技术在能源(能源转化、存储和节能)、环境(空气、水和土壤净化)和功能纺织品等研究领域提出了大量原创性研究思想并开展了深入研究工作。在本报告中,我将为大家展示若干个激动人心的研究进展:1)高能量密度电池材料(Si和金属Li负极,硫正极);2)催化剂材料的电化学调控;3)用纳米过滤器净化水和从海水中提取铀;4)有效去处PM2.5且保持低空气流通阻力的纳米纤维空气过滤器;5)用于人体热管理的保暖和降温智能织物。以上例子说明纳米技术已经成为最重要的基础技术,正在影响和变革大量应用领域。


Abstract: 

Nanotechnology has provided a novel technology platform which can address critical energy and environmental problems and enable new opportunities. In the past decade, my group has conducted research on innovative ideas to address problems related to energy conversion, storage and saving, and environment cleaning (air, water and soil), to create new opportunities in wearable applications. Here I will show exciting examples, including: 1) high energy battery materials including Si and Li metal anodes and S cathodes; 2) electrochemical tuning of catalysts; 3) Water disinfection using conducting nanofilters and uranium extraction for seawater. 4) Nanofiber air filters for efficient PM2.5 removal and low air resistance. 5) Cooling and heating textile for personal thermal management. Nanotechnology represents the most important foundational technology platform to impact nearly all areas of applications.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第143期


韩礼元老师照片


报告题目:高性能钙钛矿电池:从电池到模块

High Performance of Perovskite Solar Cells: from Cells to Module


时     间:2018年6月22日15:00-17:00

地     点:光电国家研究中心A101

报 告 人:韩礼元  教授,上海交通大学

邀 请 人:陈   炜  教授



报告人简介:

韩礼元,上海交通大学材料科学与工程学院金属基复合材料国家重点实验室“千人计划”讲席教授,日本国立物质材料研究所首席科学家。1988年毕业于日本大阪府立大学应用化学专业,工学博士。先后在日本DIC公司和Sharp公司工作了18年。2008年被邀请到日本国立物质材料研究所担任下一代太阳电池中心主任。韩礼元教授在提高太阳能电池的转换效率和模块技术创新上有很高的造诣,在Science、Nature、Nature Energy、Nature Communication、 Joule等世界顶尖期刊上发表了200多篇高水平学术论文,申请专利150多项。今后的主要研究方向是开发大面积、高效率、高稳定性的钙钛矿太阳能电池,推动该电池产业化进程。


Biography:

Liyuan Han, Chair Professor of the Recruitment Program of Global Experts of Shanghai Jiao Tong University, China. He is also the chief Scientist of National Institute for Materials Science (NIMS), Japan. He received the PhD degree (Engineering) in 1988 from Osaka Prefectural University, Japan. He has worked for DIC and Sharp Corporations in Japan for 18 years. In 2008, he was invited to NIMS of Japan as the director of the Next-generation solar cell center. Professor Han has a high level of success in improving solar cell conversion efficiency and module technology innovation. He has published more than 200 co-authored papers in world’s top journals, including Science, Nature, Nature Energy, Nature Communication, Joule etc., as well as more than 150 authorized patents. In the future, his main research direction is to develop large-area, high-efficiency, high-stability perovskite solar cells and promote the development of industrialization.



报告摘要:

钙钛矿电池由于其优异的光电性能及易于制备的特点,在最近的几年得到了快速发展。在这里,我将主要介绍我们在制备面积超过1 cm2的高效稳定钙钛矿电池方面的工作。我们利用重掺杂高电导率无机电荷传输材料,获得了首个钙钛矿电池认证效率。我们利用渐变异质结结构改善了甲咪基钙钛矿材料在反式结构中电子收集效率。此外,我们结合添加剂工程,在大于1 cm2的面积上获得了19.2%的认证效率。

从小面积电池到大面积模块过渡,最难的环节是开发出制备大面积低缺陷钙钛矿薄膜的方法。此前,我们开发了一种软膜法能够制备这样的薄膜并具有较大的晶粒尺寸。基于此方法,我们成功制备51 cm2的高质量薄膜。最近,我们又开发出一种新的无溶剂钙钛矿前驱体。将此种前驱体应用于软膜法中,我们成功制备了6*6 cm2的钙钛矿模块,获得了12.1%的AIST认证效率,这也是世界首个钙钛矿模块的效率记录。此外,我也会将我们关于钙钛矿电池成本分析和稳定性方面的工作向大家介绍一下。


Abstract: 

Here I will introduce our main achievements in the fabrication of efficient and stable PSCs with working area over one centimetre square. The first recorded efficiency of perovskite solar cells was obtained by using heavily doped inorganic charge extraction layers with high conductivity. New graded heterojunction (GHJ) structure was designed to improve the electron collection and in inverted structure with Formamidinium based perovskites. Combined with additive engineering, an certified efficiency of 19.2% was achieved.

For further enlargement of the cell to large-area module, the big challenge is to develop new deposition methods suitable for fabricating large-area perovskite films with low defects density. A soft-cover deposition method was proposed to achieve this goal. We recently synthesized a new non-solvent perovskite precursor and modified the soft-cover method. This combination led to the first perovskite module efficiency record. Furthermore, I will also talk the cost analysis and stability issue of PSCs.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第142期


照片


报告题目:超材料与超表面导引

Introduction to Metamaterials and Metasurfaces


时     间:2018年6月22日10:00-12:00

地     点:光电国家研究中心A101

报 告 人:汪国平  教授,深圳大学

邀 请 人:光电子器件与集成功能实验室



报告人简介:

汪国平,1994年获得四川大学光学专业博士学位,先后在大阪大学、东京工业大学、香港科技大学、南洋理工大学做博士后和访问学者。现为深圳市国家级领军人才,深圳大学特聘教授,电子科学与技术学院院长。曾任武汉大学二级教授、珞珈学者特聘教授。分别获国家自然科学奖二等奖、湖北省自然科学奖一等奖、教育部首届全国高校优秀骨干教师奖等多项奖励。国家自然科学基金委数理科学部、信息科学部专家评审组成员,指导的博士生分别获得2009和2010年度全国优秀博士论文提名奖。在光学超材料、光学超分辨成像与传感、表面等离激元纳米光子学等前沿领域取得多项创新性研究成果,发表SCI论文100多篇,包括Phys. Rev. Lett.、Nature Commun.、Phys. Rev. Appl.、Phys.Rev. B (Rapid Commun.)、 Appl. Phys. Lett.、Opt. Lett.、ACS Nano、Nanoscale等60余篇,合著英文专著《Plasmonic Nanoguides and Circuits》一部。主持包括国家杰出青年基金项目、国家自然科学基金重点项目、国家科技部纳米重大专项课题、教育部新世纪优秀人才计划等省部级以上研究项目20余项。


Biography:

Dr. Guo Ping Wang, received his Ph.D in Optics from Sichuan University in 1994. Since 1997, he experienced a series of academic visiting to Osaka University, Tokyo Institute of Technology, Hong Kong University of Science and Technology, and Nanyang Technology University, respectively, as a postdoctoral fellow or visiting scholar. Before joint College of Electronic Science and Technology of Shenzhen University as a chair professor in 2014, Dr. Wang has been appointed to a Luojia’s professor of Wuhan University. He was ever honored several scientific awards, including the second class prize of National Natural Science Award of China, the first class prize of Natural Science Award of Hubei province. So far, Dr. Wang has co-authored over 100 peer-reviewed journal papers in the fields of optical metamaterials, optical super-resolution imaging and sensing, plasmonics, and taken charge of more than 20 scientific projects funded by Chinese government, including National Science Foundation of China for Distinguished Young Scientists, key project of National Science Foundation of China, subject of National Science and Technology Major Project of China, and the projects for New Century Excellent Talents in University of Ministry of Education of China etc. 



报告摘要:

超材料与超表面因表现出天然材料所不具备的新奇性能而在光集成、光通信、微纳光学、隐身、超分辨成像与传感等众多领域显示出巨大的应用潜力,是国际学术前沿的热点研究领域,曾先后三次被Science评为年度全球十大科技进展之一。本讲座主要介绍超材料与超表面的构成、性能特点及其应用,并简单介绍本课题组近期在超表面方面的研究工作进展,主要包括光栅结构超表面在波前整形、灵活调控Fano共振和远场超分辨成像等领域的应用。


Abstract: 

Metamaterials and metasurfaces (METAs) exhibit unusual properties not occurring in natural materials, leading to great potential in wide fields such as integrated optics, invisibility, super-resolution imaging and sensing, and optical communications etc., and hence attract tremendous academic interests currently. Progresses brought by METAs were three times honored one of the annual science and technology breakthroughs of the world by SCIENCE magazine. In this talk, we will introduce to you the construction, properties, and their applications of METAs, as well as our recent works on designing and demonstrating, both numerically and in part experimentally, different grating metasurfaces for (1) shaping wavefront, (2) smart controlling Fano resonance, and (3) far-field super-resolution imaging, respectively.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第141期


照片


报告题目:功能光学成像,从单分子到人眼

Functional Optical Imaging, From Single Molecules to Human Eyes


时     间:2018年6月8日10:00-12:00

地     点:光电国家研究中心A101

报 告 人:张    浩  教授,美国西北大学

邀 请 人:黄振立  教授



报告人简介:

张浩教授就职于美国西北大学生物医学工程系,他分别于1997年和2000年在上海交通大学获得学士和硕士学位,2006年获得了德州农工大学的博士学位。2006-2007年在华盛顿圣路易斯大学做博士后。他和同事首次实现了光声显微成像技术((Nature Biotechnology 2006, Nature Protocols 2007, PNAS 2010)和多光谱超分辨成像(Nature Communications 2016),也首次观测到了DNA固有的随机荧光发射的过程(PNAS 2016)。张浩教授先后获得了NSF CAREER award(2010)、NIH Director’s Challenge Award(2010)、NIH IMPACT award(2015)、SPIE Translational Research Award(2016)、US National Academy of Sciences Cozzarelli Prize(2017)。他的研究兴趣包括:OCT、超分辨成像、单分子成像、视觉科学和癌症等。他是Biomedical Optics Express的副主编、NIH 神经科学和眼科成像技术研究部的特许会员。2015年,他联合创办了Opticent Health公司来商业化他们实验室发展的OCT技术。


Biography:

Hao F. Zhang is a Professor of Biomedical Engineering at Northwestern University. He received his Bachelor and Master degrees from Shanghai Jiao Tong University(Shanghai, China) in 1997 and 2000, respectively, and his Ph.D. degree from Texas A&M University (College Station, Texas) in 2006. From 2006 to 2007, he was a postdoctoral fellow at Washington University in St. Louis. He and colleagues reported the first demonstration of photoacoustic microscopy (Nature Biotechnology 2006, Nature Protocols 2007, PNAS 2010), the first spectroscopic super-resolution imaging (Nature Communications 2016), and the first observation of intrinsic stochastic fluorescence emission from DNA (PNAS 2016). He received the NSF CAREER award and NIH Director’s Challenge Award in 2010, the NIH IMPACT award in 2015, the SPIE Translational Research Award in 2016, and the US National Academy of Sciences Cozzarelli Prize in 2017. His research interests include optical coherence tomography, super-resolution imaging, single molecule imaging, vision science, and cancers. He is an associate editor of Biomedical Optics Express and is a chartered member of the NIH Neuroscience and Ophthalmic Imaging Technologies (NOIT) study section. In 2015, he co-founded Opticent Health to commercialize optical coherence tomography technologies developed in his lab.


报告摘要:

我的实验室主要研究两种光学成像技术:OCT和光子定位显微成像,以填补临床诊断和基础生物医学研究的空白。我们发展了可见光OCT(vis-OCT)技术,用于提取比高质量解剖成像更多的病理和生理学信息。vis-OCT工作在可见光谱范围内,在超高分辨率成像、血管造影、氧代谢成像和超微结构病理传感等方面表现出了巨大的潜力。目前,我们将vis-OCT技术应用于几种致盲性疾病(糖尿病视网膜病变、视网膜静脉阻塞、黄斑变性和青光眼)和脑部疾病(缺血性中风和脑瘤)的研究。

在超分辨成像研究中,我们发展了多光谱光子定位成像技术(SPLM)。传统的光子定位成像通过分析单个分子随机发射的光子的空间分布特征,来重建超分辨光学图像。SPLM还捕获了这些光子固有的光谱特征。通过分子识别和复原,在不显著增加图像帧数的前提下,SPLM可以达到10nm甚至更高的分辨率。利用SPLM,我们可以进行多分子超分辨成像,可以使用发射光谱只有细微差别的荧光标记物。我们还探究了无标记核苷酸固有的随机荧光发射,用于免标记的超分辨成像。


Abstract: 

My lab focuses on two optical imaging technologies, optical coherence tomography (OCT) and photon localization microscopy, to fill the gaps in both clinical diagnoses and fundamental biomedical investigations. To enable OCT to extract physiological and pathological information beyond high-quality anatomical imaging, we developed visible-light OCT or vis-OCT. Operating within the visible-light spectral range, vis-OCT has demonstrated great potential in ultra-high resolution imaging, angiogram, oxygen metabolic imaging, and ultrastructural pathological sensing. We are applying vis-OCT to investigate several blinding diseases (diabetic retinopathy, retinal vein occultation, macular degeneration, and glaucoma) and brain disorders (ischemic strokes, brain tumors). 

In our super-resolution imaging work, we developed spectroscopic photon localization microscopy(SPLM). Traditional photon localization microscopy analyzes the spatial distributions of photons emitted stochastically by individual molecules to reconstruct super-resolution optical images. SPLM further captures the inherent spectroscopic signatures of these photons. Through molecular discrimination and regression, SPLM can reach the spatial resolution of 10 nm or greater without significantly increasing the total number of image frames. Using SPLM, we demonstrated simultaneous multi-molecular super-resolution imaging, where the number of fluorescence labels can have largely overlapping emission spectra with only minute differences. We further investigated intrinsic stochastic fluorescence emission from unstained nucleotides, seeking label-free super-resolution imaging.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第140期


照片


报告题目:微纳光纤及其应用:研究进展及未来机遇

Optical Microfibers and Nanofibers: Recent Progress and Future Opportunities


时     间:2018年5月31日10:00-12:00

地     点:光电国家研究中心A101

报 告 人:童利民  教授,浙江大学

邀 请 人:光电子器件与集成功能实验室

 

报告人简介:

童利民, 1991、1994年先后毕业于浙江大学物理系,获学士和硕士学位;1997年毕业于浙江大学材料系,获博士学位并留校工作。2001年获包兆龙包玉刚奖学金资助,赴美国哈佛大学Mazur研究组访问进修。2004年回浙江大学工作,组建微纳光子学研究组(www.nanophotonics.zju.edu.cn)。现为浙江大学光电科学与工程学院教授,教育部长江学者特聘教授。主要从事纳米光子学原理、结构及器件,以及光纤技术方面的研究工作。首次实现亚波长直径纳米光纤的低损耗光学传输、纳米光纤-表面等离激元近场高效耦合、纳米线-硅基片上集成等工作,研制成功纳米光纤传感器、纳米线单模激光器、表面等离激元激光器、超快全光调制器等新型微纳光子器件。在 Nature 等发表学术论文 200 余篇,出版学术专著 1 本。多项研究结果被Nature、Nature Nanotechnology、Nature Materials等报道。曾获国家杰出青年科学基金、中国光学学会“王大珩中青年科技奖”、中国青年科技奖、霍英东教育基金会青年教师奖、国防科学技术奖、浙江省自然科学奖、OSA Fellow 等荣誉或资助。担任美国光学学会Optica期刊副编辑、Chinese Optics Letters、Photonic Sensors、Chinese Physics B、Sensors等期刊编委、Optics Communications 期刊咨询编辑,以及 美国光学学会 R. W. Wood 奖评奖委员会主席等学术兼职。指导博士研究生获得全国优秀博士学位论文提名、全国光学优秀博士学位论文等奖励。


Biography:

Limin Tong received his BSc degree (1991) and MSc degree (1994) in Physics, and PhD degree (1997) in Materials Science and Engineering, all from Zhejiang University, China. In 1997 he joined Department of Physics at Zhejiang University as an assistant professor. From 2001 to 2004, he joined Mazur Group at Harvard University as a visiting scientist, and returned Zhejiang University in 2004, where he established a Nanophotonics Group (www.nanophotonics.zju.edu.cn). He is currently a professor of the College of Optical Science and Engineering at Zhejiang University. His research interests are in nanophotonics and fiber optics, with emphases on nanofiber/nanowire photonics, nanoplasmonics and devices. He received the Chang Jiang Scholars (Ministry of Education, China) in 2012, the WANG Daheng Optics Prize (Chinese Optics Society) in 2007, and the National Science Foundation for Outstanding Young Talents (NSFC) in 2004, respectively. He is a fellow of the Optical Society of America, an Associate Editor of Optica, and has been serving as Advisory Board Member for Optics Communications, Editorial Board Member for Chinese Optics Letters, Photonic Sensors, Chinese Physics B and Sensors. 



报告摘要:

无论对于基础研究还是技术应用,在更小的维度上调控光场始终是一个具有吸引力的研究方向。在各种微纳光学结构中,一维导波结构在单模传输光场时所需的时间、空间、材料及光程最小,灵活度最高,因而具有特殊的重要性,微纳光纤即为其中典型的结构之一。使用物理拉伸法制备的微纳光纤,在表面质量和直径均匀度方面均远优于所有其他方式制备的微纳光波导,因而在同尺寸波导中具有最低光学导波损耗。由于纤芯与包层(通常为空气或水等低折射率介质)具有高折射率差,微纳光纤可以进行强约束及大比例倏逝场导波。比如,通过控制“波长-直径”比,导模倏逝场比例可以达到80%以上,并同时维持较小的整体模场尺寸,有利于增强传输光场与环境的强局域相互作用。

本报告将介绍我们最近在微纳光纤方面取得的进展,包括光纤制备、功能化及其应用,特别是在微纳光纤传感、超快光调制及片上集成方面的工作。同时,也顺带提及一些半导体纳米线等类似结构(在一些文献中也称为“纳米光纤”)完成的类似功能。最后,简单讨论该研究方向所面临的挑战及未来机遇。


Abstract: 

Manipulating light on a lower dimension is always of intense interest to both fundamental research and technological applications. Among various nanostructures for low-dimensional photonics, the one-dimensional microfiber or nanofiber (MNF) is of great importance owing to its capability of routing tightly confined light fields in single-mode with least space and material requirement, minimized optical path, and high mechanical flexibility. Free-standing optical MNFs fabricated by physical drawing techniques surpass micro/nanowaveguides fabricated by almost all other means in terms of sidewall smoothness and diameter uniformity, conveying their low waveguiding losses. With high index contrast  between the core and the surrounding, an MNF can guide light with tight optical confinement and/or high fractional evanescent fields. For example, by increasing wavelength-to-diameter ratio of a nanowire, the fractional power of the evanescent fields in the guiding modes can be enlarged to over 80% while maintaining a small effective mode area, which may enable highly localized near-field interaction between the guided fields and the surrounding media. 

This talk will summarize our recent progress in optical MNFs from fabrication, functionalization to application, with emphases on MNF sensing, optical modulation and on-chip integration. Similar one-dimensional photonic structures such as semiconductor nanowires (also called “nanofiber” in recent literatures)  will also be mentioned. Finally, challenges and future opportunities in this field will be briefly discussed.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或下载超星APP“学习通”,在首页搜索“武汉光电论坛”


武汉光电论坛第139期

照片


报告题目:生物医学中的化学成像:光学显微镜的下一个研究前沿

Chemical Imaging for Biomedicine: The Next Frontier of Light Microscopy


时     间:2018年5月28日10:30-12:00

地     点:光电国家研究中心A101

报 告 人:闵  玮  教授,美国哥伦比亚大学

邀 请 人:王  平  教授



报告人简介:

闵玮现任哥伦比亚大学化学系终身教授。2003年本科毕业于北京大学,2008年博士毕业于哈佛大学,师从美国科学院院士谢晓亮教授,2010年起执教哥伦比亚大学,2017年获得正教授职位。闵教授曾获的诸多奖项,包括2017美国化学会Early Career Award of Experimental Physical Chemistry、2017 Coblentz Award of Molecular Spectroscopy、2015 Buck-Whitney Award of ACS Eastern New York Section、2015 Camille Dreyfus Teacher-Scholar Award、2013 Alfred P. Sloan Research Fellowship等等。闵教授课题组的研究方向是应用生物分子光谱学去开发新型光学显微镜,结合化学探针和生物技术,推动神经科学、癌症检测和疾病诊断等前沿生命科学和医学课题的发展。闵教授已在Science、 Nature、Nature methods 和其它高影响力的刊物上发表了多篇学术论文。


Biography:

Dr. Wei Min graduated from Peking University with a Bachelor's degree of Chemistry in 2003.  He received his Ph.D. from Harvard University in 2008 studying single-molecule biophysics with Prof. Sunney Xie. After continuing his postdoctoral work in Xie group, Dr. Min joined the faculty of Department of Chemistry at Columbia University in 2010, and is promoted to Full Professor there in 2017. He is also affiliated with the Kavli Institute for Brain Science at Columbia University. Dr. Min's contribution has been recognized by a number of honors, including: 2017 American Chemical Societies(ACS) Early Career Award of Experimental Physical Chemistry、2017 Coblentz Award of Molecular Spectroscopy、2015 Buck-Whitney Award of ACS Eastern New York Section、2015 Camille Dreyfus Teacher-Scholar Award、2013 Alfred P. Sloan Research Fellowship. Dr. Min's current research interests focus on developing novel optical spectroscopy and microscopy technology to address biomedical problems. In particular, his group has made important contributions to the development of stimulated Raman scattering (SRS) microscopy and its broad application in biomedical imaging including bioorthogonal chemical imaging of small molecules and super-multiplex vibrational imaging. Professor Wei has published many scientific papers on Science, Nature, Nature methods and other high impact journals.



报告摘要:

光学显微镜的技术革新将极大地改变生物学的研究方式。虽然荧光显微成像是目前细胞成像的首选方法,但在“组学”时代,它受到荧光基团过大,无法多色成像的限制。这里,我将提出两种化学成像策略。首先,我们结合新兴的受激拉曼散射显微镜与小的拉曼探针(例如炔烃、包括2H13C等同位素)对无法进行荧光标记的生物小分子进行成像,研究脂肪酸代谢相关的脂肪毒性,葡萄糖摄取和代谢,药物传输,脑内蛋白质合成,DNA复制,蛋白质降解,RNA合成和肿瘤代谢。其次,我们发明了一种基于新型染料组成的振动调色板多色标记技术,开发了近共振受激拉曼散射显微镜。使用这种方法,我们观察了培养神经元和脑组织中的DNA和蛋白质代谢。这种多色成像方法有望促进复杂生物系统中相互作用研究,并在光学和生物技术中找到更广泛的应用。


Abstract: 

Innovations in light microscopy have tremendously revolutionized the way researchers study biological systems. Although fluorescence microscopy is currently the method of choice for cellular imaging, it faces fundamental limitations such as the bulky fluorescent tags and limited multiplexing ability in the era of “omics”. In this talk, I will present two chemical imaging strategies, respectively. First, we devised a live-cell Bio-orthogonal Chemical Imaging platform suited for probing the dynamics of small bio-molecules, which can not be effectively labeled by bulky fluorophores. This scheme couples the emerging stimulated Raman scattering microscopy with tiny and Raman-active vibrational probes (e.g., alkynes, nitriles and stable isotopes including  2H and 13C). Exciting biomedical applications such as imaging fatty acid metabolism related to lipotoxicity, glucose uptake and metabolism, drug trafficking, protein synthesis in brain, DNA replication, protein degradation, RNA synthesis and tumor metabolism will be presented. Second, we invented a super-multiplex optical imaging technique. We developed electronic pre-resonance stimulated Raman scattering (epr-SRS) microscopy, achieving exquisite vibrational selectivity with high versatility and sensitivity. Chemically, we created a unique vibrational palette consisting of novel dyes bearing conjugated and isotopically-edited triple bonds, each displaying a single epr-SRS peak in the cell-silent spectra window. Up to 24 resolvable colors are currently achieved with great potential for further expansion. Using this approach, we monitored DNA and protein metabolism in neuronal co-cultures and brain tissues. This super-multiplex optical imaging approach promises to facilitate untangling the intricate interactions in complex biological systems, and find broad applications in photonics and biotechnology in general.



武汉光电论坛是武汉光电国家研究中心倾力打造的公益性高端学术系列讲座,共享光电知识盛宴,诚邀您的参与!



第100期起报告视频,访问http://www.wxbgt.com/,搜索“武汉光电论坛”字样

第71-99期报告视频,访问http://mooc.chaoxing.com/course/2018895.html

更早期视频参见 http://whof.wnlo.hust.edu.cn/

或下载超星APP“学习通”,在首页搜索“武汉光电论坛”