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


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.

頁(從 - 到)2099-2101
期刊Physica Status Solidi (C) Current Topics in Solid State Physics
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


深入研究「Azimuthal anisotropy of light extraction from photonic crystal light-emitting diodes」主題。共同形成了獨特的指紋。