Gain spectra and stimulated emission in epitaxial (In,Al) GaN thin films

被引：43
|
作者：
Wiesmann, D [1 ]
Brener, I [1 ]
Pfeiffer, L [1 ]
Khan, MA [1 ]
Sun, CJ [1 ]
机构：
[1] APA OPT INC,BLAINE,MN 55449
来源：
APPLIED PHYSICS LETTERS | 1996年 / 69卷 / 22期
关键词：
D O I：
10.1063/1.117267
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We measured the emission of (In,Al) GaN films under high intensity optical pumping both in the direction parallel and perpendicular to the film growth. In the edge emission geometry we determine the gain magnitude from the variable stripe length method. We use the spontaneous emission collected perpendicular to the layer plane to calculate the spectral dependence of the gain. Finally, we compare the emission spectra with those obtained for high quality GaAs thin films and find that the observation of a stimulated emission peak perpendicular to the nitride layer plane is predominantly due to scattering of the in-plane stimulated emission. (C) 1996 American Institute of Physics.
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收藏
页码：3384 / 3386
页数：3
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