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

P. T. Guerreiro, S. G. Lee, A. S. Rodrigues, Y. Z. Hu, Ewan M Wright, S. I. Najafi, J. Mackenzie, Nasser N Peyghambarian

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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.

Original languageEnglish (US)
Pages (from-to)659-661
Number of pages3
JournalOptics Letters
Volume21
Issue number9
Publication statusPublished - May 1 1996

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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