Rotating point spread function via pupil-phase engineering

被引：53
作者：
Prasad, Sudhakar [1 ]
机构：
[1] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA
来源：
OPTICS LETTERS | 2013年 / 38卷 / 04期
关键词：
ORBITAL ANGULAR-MOMENTUM; BEAMS; DEPTH; LIGHT;
D O I：
10.1364/OL.38.000585
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple approach based on the use of a properly designed pupil-phase profile can yield a 3D point-spread function (PSF) that rotates with changing defocus, while keeping its transverse shape approximately invariant over +/- 3-4 waves of defocus. Unlike Gauss-Laguerre mode-based approaches, it generalizes readily for encoding spherical aberration too via PSF rotation. (C) 2013 Optical Society of America
引用
收藏
页码：585 / 587
页数：3
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