ASTIGMATIC PHASE CORRECTION FOR THE MAGNETOOPTIC SPATIAL LIGHT-MODULATOR

被引：11

作者：

CARCOLE, E ^{[1
]}

DAVIS, JA ^{[1
]}

COTTRELL, DM ^{[1
]}

机构：

[1] SAN DIEGO STATE UNIV,DEPT PHYS,SAN DIEGO,CA 92182

来源：

APPLIED OPTICS | 1995年 / 34卷 / 23期

关键词：

ABERRATIONS; ADAPTIVE OPTICS; COMPUTER-GENERATED HOLOGRAMS; FRESNEL ZONE PLATES; SPATIAL LIGHT MODULATORS; DIFFRACTIVE OPTICAL ELEMENTS;

D O I：

10.1364/AO.34.005118

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a simple low-cost technique for evaluating the phase distortion in a magneto-optic spatial light modulator. We find that the dominant distortion is caused by astigmatism and is easily compensated by encoding of the complex-conjugate pattern onto the device. Two experimental results are shown. First, the focused spot size from a Fresnel lens is sharpened when the aberrations are corrected. Second, we show that the pattern that generates a first-order Bessel-function nondiffracting beam does not work unless the aberrations are corrected.

引用

页码：5118 / 5120

页数：3