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Author Epshtein, E. M.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ ELECTRON GAS ♦ ELECTRON-PHONON COUPLING ♦ PHONONS ♦ PHOTON COLLISIONS ♦ TWO-DIMENSIONAL CALCULATIONS ♦ DISPERSION RELATIONS ♦ EQUATIONS OF MOTION
Abstract This paper discusses how phonons localized within a two-dimensional electron gas are affected by the presence a strong electromagnetic wave whose electric field vector lies in the plane of the two-dimensional electron gas. A dispersion relation for the phonons is derived under the assumption and the electromagnetic wave affects the phonon subsystem only via the two-dimensional electron gas. When the energy of an electromagnetic wave quantum is large compared to the electron energies, new regimes of electron-phonon interaction become possible (which are forbidden by conservation laws in the absence of the wave), including regimes in which the {open_quotes}attenuation{close_quotes} of the phonons is negative (photoinduced gain). 7 refs.
ISSN 10637826
Educational Use Research
Learning Resource Type Article
Publisher Date 1995-09-01
Publisher Place United States
Journal Semiconductors
Volume Number 29
Issue Number 9


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