期刊
APPLIED PHYSICS LETTERS
卷 95, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3271176
关键词
carrier density; gallium arsenide; III-V semiconductors; laser modes; microcavity lasers; optical materials; optical resonators; quantum well lasers; red shift; time resolved spectra
资金
- Deutsche Forschungsgemeinschaft [SFB 508, SFB 689, Graduiertenkolleg 1286, Graduiertenkolleg 638]
We report on lasing in rolled-up microtube resonators. Time-resolved studies on these semiconductor lasers containing GaAs quantum wells as optical gain material reveal particularly fast turn-on times and short pulse emissions above the threshold. We observe a strong redshift of the laser mode during the pulse emission which is compared to the time evolution of the charge-carrier density calculated by rate equations.
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