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Femtosecond pulse propagation near a two-photon transition in a semiconductor quantum-dot waveguide

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Abstract

We have studied femtosecond pulse propagation in CdS quantum-dot-doped waveguides produced by the solgel and ion-exhange methods. The observed two-photon absorption and asymmetric spectral modulation of the transmitted pulses are explained by our theoretical model, which incorporates a near-resonant two-photon transition.

© 1996 Optical Society of America

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