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Intraband radiative transitions and plasma–electromagnetic-wave coupling in periodic semiconductor structure

Gover, A. and Yariv, A. (1975) Intraband radiative transitions and plasma–electromagnetic-wave coupling in periodic semiconductor structure. Journal of Applied Physics, 46 (9). pp. 3946-3950. ISSN 0021-8979. http://resolver.caltech.edu/CaltechAUTHORS:GOVjap75

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Abstract

Intraband radiative transitions can occur in a semiconductor with an artificial periodic structure (superlattice). The "lattice momentum" of the periodic structure makes possible the conservation of momentum during the electronic transition. When the electrons in the band are drifting in an electric field, an intraband population inversion may occur, providing optical wave amplification. Under conditions where the Landau damping of the semiconductor carrier's plasma wave is low, phase-matched coupling may occur between the plasma wave and a Floquet component of the electromagnetic wave and result in a high rate of power transfer from one of the waves to the other. These effects are discussed and analyzed quantum mechanically and suggestions are made with regard to possible device applications (amplifier, modulator) in the infrared regime.


Item Type:Article
Additional Information:Copyright © 1975 American Institute of Physics. (Received 7 April 1975) Research supported by the Office of Naval Research.
Record Number:CaltechAUTHORS:GOVjap75
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:GOVjap75
Alternative URL:http://dx.doi.org/10.1063/1.322143
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10636
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:22 May 2008
Last Modified:26 Dec 2012 10:03

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