TIME-RESOLVED PHOTOLUMINESCENCE MEASUREMENT OF THE ENERGY RELAXATION PROCESS IN GAAS/ALGAAS QUANTUM-WELL STRUCTURES

被引：4

作者：

FURUTA, T

TOMIZAWA, M

YOSHII, A

机构：

[1] NTT LSI Laboratories, Atsugi-shi, Kanagawa 243-01

来源：

JOURNAL OF APPLIED PHYSICS | 1995年 / 78卷 / 01期

关键词：

D O I：

10.1063/1.360579

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The energy relaxation process of electrons in GaAs/AlGaAs multiple-quantum-well structures is investigated by time-resolved photoluminescence measurement using an up-conversion technique. The relaxation time becomes shorter as the well width becomes narrower. This means that the two-dimensional nature of electrons plays an important role in energy relaxation. In addition, the intersubband relaxation process is studied under several excitation conditions. The relaxation rate from the n=2 to the n=1 subband is found to be 1.2 ps, which is in good agreement with theoretical calculations.

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页码：596 / 598

页数：3

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