TIME RESOLVED MEASUREMENTS OF CROSS-WELL TRANSPORT IN A MULTIPLE QUANTUM-WELL P-I-N MODULATOR AT HIGH PHOTOGENERATED CARRIER DENSITIES

被引：25

作者：

MILLER, A

PARK, CB

LIKAMWA, P

机构：

[1] UNIV CENT FLORIDA,DEPT PHYS,ORLANDO,FL 32816

[2] UNIV CENT FLORIDA,DEPT ELECT ENGN,ORLANDO,FL 32816

来源：

APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 01期

关键词：

D O I：

10.1063/1.107387

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Carrier sweep-out rates from GaAs/AlGaAs multiple quantum wells have been measured as a function of excitation level on picosecond time scales at different values of applied electric field. A minimum rate of approximately 20 ps was observed under resonant tunneling conditions at low generated carrier densities. At higher excitation levels, the effects of space charge build-up were found to significantly alter the transient nonlinear optical response due to changes in the time constant associated with vertical carrier transport.

引用

收藏

页码：97 / 99

页数：3

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