采用扭曲向列型液晶显示器实现的相移数字全息术。

Phase shifting digital holography implemented with a twisted-nematic liquid-crystal display.

作者信息

Cruz Maria-Luisa, Castro Albertina, Arrizón Victor

机构信息

Instituto Nacional de Astrofísica, Optica y Electrónica, Apartado Postal 51 y 216, Puebla, PUE 72000, México.

出版信息

Appl Opt. 2009 Dec 20;48(36):6907-12. doi: 10.1364/AO.48.006907.

DOI:10.1364/AO.48.006907

PMID:20029591

Abstract

We describe and experimentally demonstrate a phase shifting method based on the lateral displacement of a grating implemented with a twisted-nematic liquid-crystal spatial light modulator. This method allows an accurate implementation of the phase shift without requiring moving parts. The technique is implemented in a Mach-Zehnder digital holography setup in which the field transmitted by the sample object freely propagates to the hologram plane.

摘要

我们描述并通过实验证明了一种基于用扭曲向列型液晶空间光调制器实现的光栅横向位移的相移方法。该方法无需移动部件即可精确实现相移。该技术在马赫-曾德尔数字全息术设置中实现，其中样本物体透射的场自由传播到全息图平面。