SURFACE-COVERED 1 x 3 GRATING WITH DIELECTRIC-METAL SLABS UNDER SECOND BRAGG INCIDENCE

被引：2

作者：

Fu, Chen ^{[1
]}

Wang, Bo ^{[1
]}

Zhu, Wenhua ^{[1
]}

Wen, Kunhua ^{[1
]}

Meng, Ziming ^{[1
]}

Nie, Zhaogang ^{[1
]}

Xing, Xiangjun ^{[1
]}

Chen, Li ^{[1
]}

Lei, Liang ^{[1
]}

Zhou, Jinyun ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou 510006, Peoples R China

来源：

SURFACE REVIEW AND LETTERS | 2020年 / 27卷 / 09期

基金：

中国国家自然科学基金;

关键词：

1 x 3 Surface-covered grating; second Bragg angle incidence; dielectric-metal slabs; BEAM SPLITTER; DESIGN; IMPLEMENTATION;

D O I：

10.1142/S0218625X19502019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper designed a novel three-port reflective surface-covered grating with a connecting layer. The grating can be used as a splitter, and the polarized light can be divided into zero order, first order and second order. Through rigorous coupled-wave analysis, the efficiency of the three orders of diffraction light is close to 33% under the condition that the incident light at 1550 nm is incident at the second Bragg angle and the given duty cycle is 0.5. The efficiency and bandwidth of the surface-covered grating are improved compared with that of the surface-relief grating reported in the past. Especially for transverse magnetic polarized light, the beam splitting effect is more uniform, the efficiency ratio of the zeroth order to first order can reach 1.01, and the efficiency ratio of the first order to second order can reach 1.

引用

页数：6

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