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Author Schneider, H. C. ♦ Chow, W. W. ♦ Koch, S. W.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ CARRIER DENSITY ♦ EXCITATION ♦ LASERS ♦ SELF-ENERGY ♦ SPECTRA
Abstract Optical gain spectra are computed for quantum dots under high excitation conditions, where there is a non-negligible two-dimensional carrier density surrounding the dots. Using a screened Hartree-Fock theory to describe the influence of the Coulomb interaction, we find different self-energy shifts for the dot and quantum-well transitions. Furthermore, in contrast to the result for quantum-well and bulk systems, the peak gain at the quantum-dot transition computed including Coulomb effects is reduced from its free carrier value.
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-09-15
Publisher Department Sandia National Laboratory
Publisher Place United States
Journal Physical Review B
Volume Number 64
Issue Number 11
Organization Sandia National Laboratory


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