Femtosecond near-field spectroscopy of a single GaAs quantum wire

被引：50

作者：

Guenther, T

Emiliani, V ^{[1
]}

Intonti, F

Lienau, C

Elsaesser, T

Nötzel, R

Ploog, KH

机构：

[1] Max Born Inst Nichtlineare Opt & Kurzzeitspektros, D-12489 Berlin, Germany

[2] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 22期

关键词：

D O I：

10.1063/1.125368

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Quasi-two-color femtosecond pump and probe spectroscopy and near-field scanning optical microscopy are combined to study the carrier dynamics in single semiconductor nanostructures. In temporally, spectrally, and spatially resolved measurements with a time resolution of 200 fs and a spatial resolution of 200 nm, the nonlinear change in reflectivity of a single quantum wire is mapped in real space and time. The experiments show that carrier relaxation in a single quantum wire occurs on a 100 fs time scale at room temperature. (C) 1999 American Institute of Physics. [S0003-6951(99)05148-7].

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页码：3500 / 3502

页数：3

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