Measurement and model of the infrared two-photon emission spectrum of GaAs

Alex Hayat, Pavel Ginzburg, Meir Orenstein

Research output: Contribution to journalArticlepeer-review

Abstract

Two-photon emission from semiconductors was recently observed, but not fully interpreted. We develop a dressed-state model incorporating intraband scattering-related level broadening, yielding nondivergent emission rates. The spectrum calculations for high carrier concentrations including the time dependence of the screening buildup correspond well to our measured two-photon emission spectrum from GaAs.

Original languageEnglish
Article number023601
JournalPhysical Review Letters
Volume103
Issue number2
DOIs
StatePublished - 6 Aug 2009
Externally publishedYes

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