TERAHERTZ RADIATION-INDUCED BY SUBBAND-GAP FEMTOSECOND OPTICAL-EXCITATION OF GAAS

被引：108

作者：

HU, BB

ZHANG, XC

AUSTON, DH

机构：

[1] Department of Electrical Engineering, Columbia University, New York

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.67.2709

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed terahertz radiation induced by subband-gap femtosecond optical excitation from GaAs. We believe this is due to screening of the surface depletion field by virtual photocarriers (the inverse Franz-Keldysh effect).

引用

页码：2709 / 2712

页数：4

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