Polarized light emission from photonic crystal light-emitting diodes

We have experimentally studied polarization characteristics of the two-dimensional photonic crystal (PhC) light-emitting diodes (LEDs) using an annular structure with square lattice and observed a strong polarization dependence of the lattice constant and orientation of the PhC. The extracted light...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2008-06, Vol.92 (24), p.243118-243118-3
Main Authors: Lai, Chun-Feng, Chi, Jim-Yong, Yen, Hsi-Hsuan, Kuo, Hao-Chung, Chao, Chia-Hsin, Hsueh, Han-Tsung, Wang, Jih-Fu Trevor, Huang, Chen-Yang, Yeh, Wen-Yung
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have experimentally studied polarization characteristics of the two-dimensional photonic crystal (PhC) light-emitting diodes (LEDs) using an annular structure with square lattice and observed a strong polarization dependence of the lattice constant and orientation of the PhC. The extracted light from the GaN PhC LEDs has P ∕ S ratios of 5.5 ( ∼ 85 % polarization light) for light propagating in the Γ X direction and 2.1 ( ∼ 68 % polarization light) for the Γ M direction, respectively. Based on the couple mode theory, the dependence of polarization behaviors on different lattice constant and orientation was found to be in good agreement with theoretical discussion.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2938885