@inproceedings{b1f63fe16419457db0db6e9b625a23d5,
title = "Investigation on filter method for smoothing spiral phase plate",
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.",
keywords = "Optical design, Phase filter, Spiral phase plate, Surface topography",
author = "Yuanhang Zhang and Shenglin Wen and Zijian Luo and Caixue Tang and Hao Yan and Chunlin Yang and Mincai Liu and Qinghua Zhang and Jian Wang",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Young Scientists Forum 2017 ; Conference date: 24-11-2017 Through 26-11-2017",
year = "2018",
doi = "10.1117/12.2317625",
language = "英语",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Kunchi Peng and Jianwei Pan and Junhao Chu",
booktitle = "Young Scientists Forum 2017",
}