This article is cited in 10 papers

CONDENSED MATTER

Experimental observation of the nonequilibrium condensation of electron-hole pairs in GaAs at room temperature

P. P. Vasil'ev

P. N. Lebedev Physical Institute, Russian Academy of Sciences

Abstract: The effect of the nonstationary condensation of electron-hole pairs in GaAs/AlGaAs p-i-n heterostructures at room temperature under the conditions of generation of superradiance pulses was demonstrated in an explicit form. It was found that a dramatic decrease in spontaneous emission from the entire conduction band and a rapid electron transition to the very bottom of the band occurred at the earliest stages of the development of a superradiance pulse. The condensation of electrons at the band bottom resulted in the formation of a nonequilibrium coherent cooperative state, the recombination of which was observed previously as high-power femtosecond superradiance pulses.

PACS: 42.50.Fx, 71.35.Lk

Received: 24.04.2005
Revised: 06.06.2005

 English version: Journal of Experimental and Theoretical Physics Letters, 2005, 82:3, 115–119

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