Time-resolved observation of coherent phonons by the Franz-Keldysh effect

被引：23

作者：

Cho, GC

Bakker, HJ

Dekorsy, T

Kurz, H

机构：

[1] Institut für Halbleitertechnik II, Rheinisch-Westfälische Technische Hochschule Aachen, D-52056 Aachen

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.53.6904

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the time-resolved observation of coherent optical phonons in GaAs by the Franz-Keldysh effect. This effect leads to a modulation of the optical interband transitions with a nonlinear dependence on the macroscopic electric field associated with the coherent phonons. We find that the nonlinear electro-optic effect forms a far more efficient detection mechanism for coherent phonons than the linear electro-optic effect near the band gap.

引用

页码：6904 / 6907

页数：4

共 28 条

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