Stimulated emission from free-standing GaN/Si micro-disk structures

被引：2
|
作者：
Choi, H. W. [1 ]
Hui, K. N. [1 ]
Lai, P. T. [1 ]
Chen, P. [2 ]
Zhang, X. H. [2 ]
Teng, J. H. [2 ]
Tripathy, S. [2 ]
Chua, S. J. [2 ]
机构：
[1] Univ Hong Kong, Dept Elect & Elect Engn, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China
[2] Inst Mat Res & Engn, Singapore 117602, Singapore
来源：
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 4 NO 7 2007 | 2007年 / 4卷 / 07期
关键词：
D O I：
10.1002/pssc.200674761
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Arrays of pivoted GaN microdisks have been fabricated on GaN/Si material by a combination of dry and wet etching. The Si material beneath the GaN microdisks is removed by wet etching, leaving behind a fine pillar to support the disks. The top and botton faces of the microdisks are optically smooth, suitable for forming optical cavities. Resonant modes, corresponding to whispering gallery modes, are observed in the photoluminescence spectra. Stimulated emission is achieved at higher optical pumping intensities. (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：2358 / +
页数：2
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