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Author Vasil'ev, P. P. ♦ Kan, H. ♦ Hiruma, T.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ALUMINIUM ARSENIDES ♦ CARRIERS ♦ COOLING ♦ ELECTRON-HOLE COUPLING ♦ EMISSION SPECTRA ♦ GALLIUM ARSENIDES ♦ PULSES ♦ SEMICONDUCTOR MATERIALS ♦ ALUMINIUM COMPOUNDS ♦ ARSENIC COMPOUNDS ♦ ARSENIDES ♦ COUPLING ♦ GALLIUM COMPOUNDS ♦ MATERIALS ♦ PNICTIDES ♦ SPECTRA
Abstract The spectra of spontaneous emission accompanying the generation of femtosecond superradiant pulses in GaAs/AlGaAs heterostructures are studied. It is clearly demonstrated that spontaneous emission spectra of electron-hole pairs, which have been left in the semiconductor after the formation of a coherent collective e-h state, correspond to the strong overheating of carriers. This phenomenon can be explained by the effect of dynamic cooling and nonequilibrium condensation of collectively paired carriers at the bottoms of the bands during the superradiant emission, which was observed earlier. (lasers)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2007-11-30
Publisher Place United States
Journal Quantum Electronics
Volume Number 37
Issue Number 11


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