Optical gain in oxidized porous silicon waveguides impregnated with a laser dye

被引：1
|
作者：
Oton, C. J. [1 ]
Navarro-Urrios, D. [1 ]
Ghulinyan, M. [2 ]
Capuj, N. E. [2 ]
Gonzalez-Perez, S. [2 ]
机构：
[1] Univ La Laguna, Dpto Fis Basica, Tenerife, Spain
[2] Univ La Laguna, Dept Fis, Tenerife, Spain
来源：
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 4 NO 6 | 2007年 / 4卷 / 06期
关键词：
D O I：
10.1002/pssc.200674407
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report positive optical gain under pulsed excitation in oxidized porous silicon planar waveguides impregnated with Nile Blue (LC 6900). Guided photoluminescence measurements show a dramatic line narrowing and a strong superlinear behaviour of the red emission when the pump power is increased. Variable stripe length (VSL) measurements show a clear transition from losses to gain, with a threshold of similar to 3 mJ/cm(2) at 700 nm. A maximum gain coefficient of 8.7 cm(-1) is reported. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页码：2145 / +
页数：2
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