|Jingtao XIN1,Zhehai ZHOU2,Xiaoping LOU2,Mingli DONG2,Lianqing ZHU1,2*|
|1. Beijing Engineering Research Center of Optoelectronic Information and Instruments, Beijing Information Science and Technology University, Beijing 100192, China|
2. Beijing Key Laboratory for Optoelectronic Measurement Technology, Beijing Information Science and Technology University, Beijing 100192, China
The propagation property of Laguerre-Gaussian (LG) beams passing through a diffractive ring-lens (RL) was studied, where the RL was generated by a liquid crystal spatial light modulator (LC-SLM). It was found that the LG beam was transformed into a sharp ring at the focal plane first, and then a Bessel-similar beam was formed behind the focal plane but the beam size was enlarged with the increase of propagation distance. With the help of a group of lenses, the beam was further collimated into a Bessel beam. Finally, the “non-diffractive” and self-reconstruction properties of the generated Bessel beams were experimentally verified.
|Cite this article: |
|Jingtao XIN,Zhehai ZHOU,Xiaoping LOU, et al. Transformation of Laguerre-Gaussian beam by a ring-lens[J]. Front. Optoelectron., 2017, 10(1): 9-13.|