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Intervalence band solitary waves in semiconductor quantum wells

Biancalana, Fabio, Healy, Sorcha B., Fehse, Robin and O'Reilly, Eoin P. 2006. Intervalence band solitary waves in semiconductor quantum wells. Physical review A 73 , 63826. 10.1103/PhysRevA.73.063826

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We show theoretically the possibility of excitation of a special class of two-frequency solitons, sustained by the nonlinearity provided by the nonradiative intervalence band coherence between heavy-hole and light-hole excitonic transitions in semiconductor quantum wells. The formation of such resonant solitons excited by femtosecond pulses in InxGa1‑xAsyP1‑y quantum wells is investigated numerically using a phenomenological model based on the local-field approximation, and a realistic configuration for their experimental observation is proposed. The pumping conditions for using complex resonant soliton dynamics as an efficient source of continuum generation are also discussed.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: American Physical Society
ISSN: 1050-2947
Last Modified: 12 Feb 2016 22:03

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