Generation of square arrays of curved Bessel-like beams using continuous-phase encoding gratings

Zhenxian Huang; Linwei Zhu; Junjie Yu

doi:10.1117/1.OE.56.10.103101

5 October 2017 Generation of square arrays of curved Bessel-like beams using continuous-phase encoding gratings

Zhenxian Huang, Linwei Zhu, Junjie Yu

Author Affiliations +

Funded by: National Natural Science Foundation of China (NSFC), Natural Science Foundation of China

Optical Engineering, Vol. 56, Issue 10, 103101 (October 2017). https://doi.org/10.1117/1.OE.56.10.103101

Abstract

We propose a scheme based on a type of continuous-phase encoding grating for the generation of multiple curved Bessel-like beams simultaneously. It is shown that multiple identical curved Bessel-like beams that diverge from a common center can be generated by overlapping a specially designed phase with a continuous-phase grating, and multiple high-order curved Bessel-like beams can be generated when another spiral phase is embedded. As an example, a 5×5 symmetric continuous-phase grating embedded with the special designed phase and a spiral phase is demonstrated based on a spatial light modulator. The experimental results show that 5×5 square arrays of bright- and dark-center curved Bessel-like beams were well generated. The proposed method provides an interesting method for obtaining simultaneously multiple curved Bessel-like beams, which should be of high interest for its promising applications in parallel optical manipulation, optical guiding, laser machining or laser surgery, particle acceleration, etc.

Citation Download Citation

Zhenxian Huang, Linwei Zhu, and Junjie Yu "Generation of square arrays of curved Bessel-like beams using continuous-phase encoding gratings," Optical Engineering 56(10), 103101 (5 October 2017). https://doi.org/10.1117/1.OE.56.10.103101

Received: 28 March 2017; Accepted: 13 September 2017; Published: 5 October 2017

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