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Author Iwamoto, S. ♦ Kageshima, H. ♦ Yuasa, T. ♦ Nishioka, M. ♦ Someya, T. ♦ Arakawa, Y. ♦ Fukutani, K. ♦ Shimura, T. ♦ Kuroda, K.
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 ♦ DIFFRACTION ♦ EFFICIENCY ♦ ELECTRIC FIELDS ♦ GEOMETRY ♦ PHYSICS ♦ SATURATION ♦ SPATIAL RESOLUTION ♦ WAVELENGTHS
Abstract We fabricate semi-insulating InGaAs/GaAs multiple quantum wells and observe the excitonic enhancement of the photorefractivity in the Franz{endash}Keldysh geometry at wavelengths of 0.92{endash}0.94 {mu}m. A maximum two-wave mixing gain of 138 cm{sup {minus}1} and a maximum diffraction efficiency of 1.5{times}10{sup {minus}4} are obtained. The saturation intensity and the spatial resolution are also measured by four-wave mixing. The diffraction efficiency is saturated at a high external electric field. The dominant cause of this saturation is the deviation of the excitonic electroabsorption from its quadratic law. {copyright} 2001 American Institute of Physics.
ISSN 00218979
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-06-01
Publisher Place United States
Journal Journal of Applied Physics
Volume Number 89
Issue Number 11


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