PICOSECOND ROOM-TEMPERATURE EXCITONIC-ABSORPTION SATURATION AND 4-WAVE-MIXING IN INAS/GAAS SHORT-PERIOD STRAINED-LAYER SUPERLATTICES

被引：2

作者：

MCCALLUM, DS ^{[1
]}

HUANG, XR ^{[1
]}

DAWSON, MD ^{[1
]}

BOGGESS, TF ^{[1
]}

SMIRL, AL ^{[1
]}

HASENBERG, TC ^{[1
]}

机构：

[1] HUGHES RES LABS,MALIBU,CA 90265

来源：

SUPERLATTICES AND MICROSTRUCTURES | 1990年 / 8卷 / 01期

关键词：

D O I：

10.1016/0749-6036(90)90289-J

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report picosecond nonlinear optical measurements in InAs/GaAs short-period strained-layer superlattices. Under resonant excitation near 1 μm at room temperature, strong bleaching of the n=1 heavy-hole excitonic absorption peak and large associated degenerate four-wave mixing signals were observed. The spectral dependence of the absorption change and refractive index change per photo-generated electron-hole pair were extracted directly from the measured differential transmission and wavelength-dependent four-wave mixing diffraction efficiency respectively. The measured refractive index change is consistent with that predicted indirectly by a Kramers-Kronig transformation of the measured wavelength-dependent absorption change per carrier pair. © 1990.

引用

页码：127 / 130

页数：4

共 9 条

[1] ROOM-TEMPERATURE EXCITONIC NONLINEAR ABSORPTION AND REFRACTION IN GAAS/ALGAAS MULTIPLE QUANTUM WELL STRUCTURES [J].