Journal
PHYSICS LETTERS A
Volume 372, Issue 14, Pages 2509-2513Publisher
ELSEVIER
DOI: 10.1016/j.physleta.2007.12.012
Keywords
four-wave mixing (FWM); intersubband transitions; semiconductor quantum well
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We propose an efficient four-wave mixing (FWM) scheme in an asymmetric semiconductor double quantum-well (SDQW) structure based on intersubband transitions, and obtain the corresponding explicit analytical expressions for the input probe and generated FWM pulsed fields by use of the coupled Schrodinger-Maxwell approach. Under the resonant and phase-rnatched conditions, the FWM efficiency versus several variables is also discussed in details and the maximum FWM efficiency of the system under study is greater than 25%. Such a semiconductor system is much more practical than its atomic counterpart because of its flexible design and the controllable interference strength. This nonlinear optical process in the SDQW solid-state material can be used for efficiently generating coherent short-wavelength radiation. (C) 2007 Elsevier B.V. All rights reserved.
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