Design of polarization-selective light emitters using one-dimensional metal grating mirror

被引：11

作者：

Ee, Ho-Seok ^{[1
]}

Kim, Sun-Kyung ^{[1
]}

Kwon, Soon-Hong ^{[1
]}

Park, Hong-Gyu ^{[1
]}

机构：

[1] Korea Univ, Dept Phys, Seoul 136701, South Korea

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 02期

关键词：

HIGH EXTRACTION EFFICIENCY; EMITTING-DIODES; PHOTONIC-CRYSTALS; MICROCAVITY;

D O I：

10.1364/OE.19.001609

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper proposes a polarization-selective light emitter that can enhance preferentially the spontaneous emission rate of one desired polarization state using a one-dimensional metal grating mirror. Systematic numerical simulations were performed to determine the optimized structural parameters of the metal grating mirror consisting of ITO/silver, in which the two orthogonally polarized lights reflected from the grating mirror undergo completely opposite phases. This metal grating mirror was incorporated into a GaN medium, and the spontaneous emission rate of one linearly polarized light was 1.3 times higher than that of the other at a specific distance between the light source and mirror. In addition, the polarization ratio can be increased to 15:1 by considering the extracted power in a practical vertical GaN slab light-emitting diode structure. This study will be useful for demonstrating high-efficiency polarization-selective light-emitting diodes without using additional optical components, such as a polarizer. (c) 2011 Optical Society of America

引用

页码：1609 / 1616

页数：8

共 22 条

[21] Polarized GaN-based LED with an integrated multi-layer subwavelength structure [J].