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Investigation on filter method for smoothing spiral phase plate
Author(s): Yuanhang Zhang; Shenglin Wen; Zijian Luo; Caixue Tang; Hao Yan; Chunlin Yang; Mincai Liu; Qinghua Zhang; Jian Wang
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Paper Abstract

Spiral phase plate (SPP) for generating vortex hollow beams has high efficiency in various applications. However, it is difficult to obtain an ideal spiral phase plate because of its continuous-varying helical phase and discontinued phase step. This paper describes the demonstration of continuous spiral phase plate using filter methods. The numerical simulations indicate that different filter method including spatial domain filter, frequency domain filter has unique impact on surface topography of SPP and optical vortex characteristics. The experimental results reveal that the spatial Gaussian filter method for smoothing SPP is suitable for Computer Controlled Optical Surfacing (CCOS) technique and obtains good optical properties.

Paper Details

Date Published: 5 March 2018
PDF: 6 pages
Proc. SPIE 10710, Young Scientists Forum 2017, 1071040 (5 March 2018); doi: 10.1117/12.2317625
Show Author Affiliations
Yuanhang Zhang, Chengdu Fine Optical Engineering Research Ctr. (China)
Shenglin Wen, Chengdu Fine Optical Engineering Research Ctr. (China)
Zijian Luo, Chengdu Fine Optical Engineering Research Ctr. (China)
Caixue Tang, Chengdu Fine Optical Engineering Research Ctr. (China)
Hao Yan, Chengdu Fine Optical Engineering Research Ctr. (China)
Chunlin Yang, Chengdu Fine Optical Engineering Research Ctr. (China)
Mincai Liu, Chengdu Fine Optical Engineering Research Ctr. (China)
Qinghua Zhang, Chengdu Fine Optical Engineering Research Ctr. (China)
Jian Wang, Chengdu Fine Optical Engineering Research Ctr. (China)


Published in SPIE Proceedings Vol. 10710:
Young Scientists Forum 2017
Songlin Zhuang; Junhao Chu; Jian-Wei Pan, Editor(s)

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