Low-power, all-optical nonlinear absorption in asymmetric double quantum wells

Low-power, all-optical nonlinear absorption in asymmetric double quantum wells

We demonstrate all-optical nonlinearities at low cw pump powers (50 W/cm2) using a novel heterostructure design which spatially separates photoexcited electron-hole pairs. Theoretical calculations based on many-body interactions are in good agreement with the measured spectra.

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Bibliographic Details
Published in:Applied physics letters Vol. 58; no. 25; pp. 2889 - 2891
Main Authors: Dawson, P., Galbraith, I., Kucharska, A. I., Foxon, C. T.
Format: Journal Article
Language:English
Published: 24-06-1991
Online Access:Get full text
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Description
Summary:We demonstrate all-optical nonlinearities at low cw pump powers (50 W/cm2) using a novel heterostructure design which spatially separates photoexcited electron-hole pairs. Theoretical calculations based on many-body interactions are in good agreement with the measured spectra.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.104738