Simultaneous phase and amplitude aberration sensing with a liquid-crystal vector-Zernike phase mask

被引：25

作者：

Doelman, David S. ^{[1
]}

Auer, Fedde Fagginger ^{[1
]}

Escuti, Michael J. ^{[2
]}

Snik, Frans ^{[1
]}

机构：

[1] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands

[2] North Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27695 USA

来源：

OPTICS LETTERS | 2019年 / 44卷 / 01期

基金：

欧洲研究理事会;

关键词：

CONTRAST;

D O I：

10.1364/OL.44.000017

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an enhanced version of the Zernike wavefront sensor (WFS), which simultaneously measures phase and amplitude aberrations. The "vector-Zernike" WFS consists of a patterned liquid-crystal mask, which imposes a +/-pi/2 phase on the point spread function core through the achromatic geometric phase acting with the opposite sign on opposite circular polarizations. After splitting circular polarization, the ensuing pupil intensity images are used to reconstruct the phase and the amplitude of the incoming wavefront. We demonstrate reconstruction of the complex wavefront with monochromatic lab measurements and show in simulation the high accuracy and sensitivity over a bandwidth up to 100%. (C) 2018 Optical Society of America

引用

页码：17 / 20

页数：4

共 18 条

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