Optical gain and lasing in self-assembled InP/GaInP quantum dots

被引:65
作者
Moritz, A [1 ]
Wirth, R [1 ]
Hangleiter, A [1 ]
Kurtenbach, A [1 ]
Eberl, K [1 ]
机构
[1] MAX PLANCK INST FESTKORPERFORSCH,D-70569 STUTTGART,GERMANY
关键词
D O I
10.1063/1.117375
中图分类号
O59 [应用物理学];
学科分类号
摘要
Optical gain measurements have been performed on self-assembled InP quantum dots embedded in GaInP. The dots are formed during the growth of InP on GaInP by molecular beam epitaxy due to the strong lattice mismatch and are overgrown with GaInP afterwards. The optical gain spectra show two peaks which could be clearly identified by their polarization properties as being due to the quantum dots and the wetting layer, respectively. As expected from the results of the gain measurements, optical pumping of cleaved samples at room temperature leads to lasing of either the quantum dots or the wetting layer, depending on the experimental conditions. (C) 1996 American Institute of Physics.
引用
收藏
页码:212 / 214
页数:3
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