Azimuthal anisotropy of light extraction from photonic crystal light-emitting diodes

Chun Feng Lai, Hao-Chung Kuo, C. H. Chao, H. T. Hsueh, J. F T Wang, W. Y. Yeh, J. Y. Chi, Tien-chang Lu, S. C. Wang

研究成果: Conference article同行評審

摘要

Photonic crystal (PhC) light-emitting diodes (LEDs) exhibiting anisotropic light extraction have been investigated experimentally and theoretically. It is found that the anisotropic light extraction strongly depends on the lattice constant and orientation. Optical images of the anisotropy in the azimuthal direction are obtained using annular structure with triangular lattice. 6-fold symmetric light extraction patterns with varying number of petals are observed. More petals in multiple of 6 appear in the observed image with lattice constant increasing. This anisotropic behavior suggests a new means to optimize the PhC design of GaN LED for light extraction.

原文English
頁(從 - 到)2099-2101
頁數3
期刊Physica Status Solidi (C) Current Topics in Solid State Physics
5
發行號6
DOIs
出版狀態Published - 13 5月 2008
事件7th International Conference of Nitride Semiconductors, ICNS-7 - Las Vegas, NV, United States
持續時間: 16 9月 200721 9月 2007

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