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Physica E Low-dimensional Systems and Nanostructures

Enhanced Kerr nonlinearity in a tunnel-coupled double quantum wells

Seyyed Hossein Asadpour, Hamid Reza Hamedi, A. Eslami-Majd, Mostafa Sahrai

Published Oct 2, 2011• 74 citations
Publisher
DOI
10.1016/j.physe.2011.09.023

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Fillers

We propose an asymmetric AlGaAs/GaAs double quantum wells (QWs) structure for realizing the enhancement of self-Kerr nonlinearity. It is found, with resonant tunneling, that the self-Kerr nonlinearity can be clearly enhanced, while the absorption of probe field is very small and can be safely neglected. We attribute the enhancement of self-Kerr nonlinearity mainly to the constructive interference induced by resonant tunneling.

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