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Encapsulated polarization-selective splitting grating with metal-mirror-based features

WENHUA ZHU1, BO WANG1,* , CHENHAO GAO1, KUNHUA WEN1, ZIMING MENG1, XIANGJUN XING1, LI CHEN1, LIANG LEI1, JINYUN ZHOU1

Affiliation

  1. School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China

Abstract

We design and optimize the sandwiched reflective polarization-selective grating in Littrow mounting. By using the modal method and the rigorous coupled-wave analysis, grating parameters are analyzed and calculated including grating groove depth, thickness of connecting layer, and so on. The grating device can diffract the transverse electric-polarized plane light only in the -1st diffractive order with high reflection efficiency of 97.91%. Meanwhile, for the transverse magnetic-polarized plane light, diffraction efficiencies in the 0th order and the -1st order correspond to 48.67% and 48.68%, respectively..

Keywords

Sandwiched metal-mirror-based grating, Beam splitter, Polarization selectivity, Reflective efficiency.

Submitted at: June 22, 2018
Accepted at: Feb. 12, 2019

Citation

WENHUA ZHU, BO WANG, CHENHAO GAO, KUNHUA WEN, ZIMING MENG, XIANGJUN XING, LI CHEN, LIANG LEI, JINYUN ZHOU, Encapsulated polarization-selective splitting grating with metal-mirror-based features, Journal of Optoelectronics and Advanced Materials Vol. 21, Iss. 1-2, pp. 13-17 (2019)