外文题目: Generation of square arrays of curved Bessel-like beams using continuous-phase encoding gratings
作者: Huang, Zhenxian; Zhu, Linwei; Yu, Junjie
刊名: Opt. Eng.
年: 2017 卷: 56 期: 10 文章编号：103101
英文关键词:
continuous-phase encoding gratings; spiral phase; curved Bessel beam arrays
SPATIAL LIGHT-MODULATOR; ARBITRARY TRAJECTORIES; NONDIFFRACTING BEAMS; OPTICAL BEAMS; MICROSCOPY; AXICON
英文摘要:
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 x 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 x 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.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1117/1.OE.56.10.103101


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