OPTICAL MEASUREMENTS OF TEMPERATURE IN A QUASI-2-DIMENSIONAL EXCITON SYSTEM

被引：4
|
作者：
RESHOTKO, MR
SHVARTSMAN, LD
GOLUB, JE
机构：
[1] Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem
来源：
PHYSICAL REVIEW B | 1994年 / 50卷 / 07期
关键词：
D O I：
10.1103/PhysRevB.50.4692
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have used time-resolved photoluminescence spectroscopy to measure the temperature of a gas of quasi-two-dimensional excitons. The exciton gas consists of bath spatially direct and spatially indirect excitons in a coupled GaAs/AlxGa1-xAs double-quantum-well system. We show by experiment and modeling that the ratio of the intensities of the recombination radiation constitutes a sensitive, calibrated thermometer for the electron system. The technique is insensitive to inhomogeneous effects such as well-width fluctuations and is feasible at temperatures as low as several K.
引用
收藏
页码：4692 / 4695
页数：4
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