標題: Azimuthal anisotropy of light extraction from photonic crystal light-emitting diodes
作者: Lai, Chun-Feng
Kuo, H. C.
Chao, C. H.
Hsueh, H. T.
Wang, J. -F. T.
Yeh, W. Y.
Chi, J. Y.
Lu, T. C.
Wang, S. C.
光電工程學系
Department of Photonics
公開日期: 2008
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.
URI: http://hdl.handle.net/11536/32564
http://dx.doi.org/10.1002/pssc.200778453
ISSN: 1610-1634
DOI: 10.1002/pssc.200778453
期刊: PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 5, NO 6
Volume: 5
Issue: 6
起始頁: 2099
結束頁: 2101
Appears in Collections:Conferences Paper


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