Title :
Azimuthal Anisotropy of Light Extraction from Photonic Crystal Light-emitting Diodes
Author :
Hsueh, H.T. ; Wang, J.-F.T. ; Chao, C.H. ; Yeh, W.Y. ; Chi, J.Y. ; Lai, C.F. ; Kuo, H.C. ; Lu, T.C. ; Wang, S.C.
Author_Institution :
Electron. & Optoelectron. Res. Labs., Ind. Technol. Res. Inst., Hsinchu
Abstract :
Photonic crystal light-emitting diodes exhibiting anisotropic light extraction efficiency have been investigated experimentally and theoretically. Images of the anisotropy in the azimuthal direction are obtained using annular structures with triangular lattice. Depending on the lattice constants, 6-fold symmetric patterns with varying number of petals are obtained.
Keywords :
anisotropic media; light emitting diodes; photonic crystals; annular structure; azimuthal anisotropy; azimuthal direction; light extraction; photonic crystal light-emitting diodes; triangular lattice; Anisotropic magnetoresistance; Diffraction; Etching; Focusing; Gallium nitride; Lattices; Light emitting diodes; Optical propagation; Photonic crystals; Scanning electron microscopy;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391272
