4.6 Article

Interferometric method for phase calibration in liquid crystal spatial light modulators using a self-generated diffraction-grating

期刊

OPTICS EXPRESS
卷 24, 期 13, 页码 14159-14171

出版社

OPTICAL SOC AMER
DOI: 10.1364/OE.24.014159

关键词

-

类别

资金

  1. European Research Council [ERC-2013-AdG-339228]
  2. Spanish SEIDI [FIS2013-41237-R]
  3. European Regional Development Fund (EU-FEDER)
  4. Fundacion Seneca Agencia de Ciencia y Tecnologia de la Region de Murcia (Spain) [18964/JLI/13]
  5. Government of Valencia (Spain) [APOSTD/2014/100]

向作者/读者索取更多资源

An auto-referenced interferometric method for calibrating phase modulation of parallel-aligned liquid crystal (PAL) spatial light modulators (SLM) is described. The method is experimentally straightforward, robust, and requires solely of a collimated beam, with no need of additional optics. This method uses the SLM itself to create a tilted plane wave and a reference wave which mutually interfere. These waves are codified by means of a binary diffraction grating and a uniformly distributed gray level area (piston) into the SLM surface. Phase shift for each gray level addressed to the piston section can then be evaluated. Phase modulation on the SLM can also be retrieved with the proposed method over spatially resolved portions of the surface. Phase information obtained with this novel method is compared to other well established calibration procedures, requiring extra elements and more elaborated optical set-ups. The results show a good agreement with previous methods. The advantages of the new method include high mechanical stability, faster performance, and a significantly easier practical implementation. (C) 2016 Optical Society of America

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据