一种用于同时使用红光、绿光和蓝光的非偏振光的体相位全息光栅的设计与优化。

Design and optimization of a volume-phase holographic grating for simultaneous use with red, green, and blue light using unpolarized light.

作者信息

Mahamat Adoum H, Narducci Frank A, Schwiegerling James

出版信息

Appl Opt. 2016 Mar 1;55(7):1618-24. doi: 10.1364/AO.55.001618.

DOI:10.1364/AO.55.001618

Abstract

Volume-phase holographic (VPH) gratings have been designed for use in many areas of science and technology, such as optical communication, optical imaging, and astronomy. In this paper, the design of a volume-phase holographic grating, simultaneously optimized to operate in the red, green, and blue wavelengths, is presented along with a study of its fabrication tolerances. The grating is optimized to produce 98% efficiency at λ=532 nm and at least 75% efficiency in the region between 400 and 700 nm, when the incident light is unpolarized. The optimization is done for recording in dichromated gelatin with a thickness of 12 μm, an average refractive index of 1.5, and a refractive index modulation of 0.022.

摘要

体相位全息（VPH）光栅已被设计用于许多科学技术领域，如光通信、光学成像和天文学。本文介绍了一种同时优化为在红、绿、蓝波长下工作的体相位全息光栅的设计，并对其制造公差进行了研究。当入射光为非偏振光时，该光栅经优化后在λ = 532 nm处的效率为98%，在400至700 nm区域内的效率至少为75%。优化是针对在厚度为12μm、平均折射率为1.5且折射率调制为0.022的重铬酸盐明胶中记录进行的。