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Title: Spectrally resolved four-wave mixing experiments on bulk GaAs with 14-fs pulses

Abstract

We investigate the coherent dynamics at the band edge of GaAs at low temperatures for carrier densities ranging from 4.3{times}10{sup 14} cm{sup {minus}3} to 4.4{times}10{sup 17} cm{sup {minus}3} by means of spectrally resolved transient four-wave mixing with 14-fs pulses. At large nonequilibrium carrier densities we observe oscillations with an energy-dependent oscillation period related to interference among continuum states. The experimental findings are compared with a simple model. This comparison delivers a weak energy dependence of dephasing in the initial buildup phase of screening. {copyright} {ital 1996 Optical Society of America.}

Authors:
; ;  [1]; ;  [2]
  1. Experimentelle Physik II, Universitaet Dortmund, Otto-Hahn-Strasse 4, D-44227 Dortmund (Germany)
  2. Wissenschaftliches Zentrum fuer Materialwissenschaften und Fachbereich Physik, Philipps-Universitaet Marburg, Hans-Meerwein-Strasse, D-35032 Marburg (Germany)
Publication Date:
OSTI Identifier:
286555
Resource Type:
Journal Article
Journal Name:
Journal of the Optical Society of America, Part B: Optical Physics
Additional Journal Information:
Journal Volume: 13; Journal Issue: 5; Other Information: PBD: May 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; GALLIUM ARSENIDES; MAGNETO-OPTICAL EFFECTS; ABSORPTION SPECTRA; FREQUENCY MIXING; EXCITONS

Citation Formats

Wehner, M U, Steinbach, D, Wegener, M, Marschner, T, and Stolz, W. Spectrally resolved four-wave mixing experiments on bulk GaAs with 14-fs pulses. United States: N. p., 1996. Web. doi:10.1364/JOSAB.13.000977.
Wehner, M U, Steinbach, D, Wegener, M, Marschner, T, & Stolz, W. Spectrally resolved four-wave mixing experiments on bulk GaAs with 14-fs pulses. United States. https://doi.org/10.1364/JOSAB.13.000977
Wehner, M U, Steinbach, D, Wegener, M, Marschner, T, and Stolz, W. 1996. "Spectrally resolved four-wave mixing experiments on bulk GaAs with 14-fs pulses". United States. https://doi.org/10.1364/JOSAB.13.000977.
@article{osti_286555,
title = {Spectrally resolved four-wave mixing experiments on bulk GaAs with 14-fs pulses},
author = {Wehner, M U and Steinbach, D and Wegener, M and Marschner, T and Stolz, W},
abstractNote = {We investigate the coherent dynamics at the band edge of GaAs at low temperatures for carrier densities ranging from 4.3{times}10{sup 14} cm{sup {minus}3} to 4.4{times}10{sup 17} cm{sup {minus}3} by means of spectrally resolved transient four-wave mixing with 14-fs pulses. At large nonequilibrium carrier densities we observe oscillations with an energy-dependent oscillation period related to interference among continuum states. The experimental findings are compared with a simple model. This comparison delivers a weak energy dependence of dephasing in the initial buildup phase of screening. {copyright} {ital 1996 Optical Society of America.}},
doi = {10.1364/JOSAB.13.000977},
url = {https://www.osti.gov/biblio/286555}, journal = {Journal of the Optical Society of America, Part B: Optical Physics},
number = 5,
volume = 13,
place = {United States},
year = {Wed May 01 00:00:00 EDT 1996},
month = {Wed May 01 00:00:00 EDT 1996}
}