Continuum contribution to excitonic four-wave mixing

Dan Birkedal, Karim El Sayed, Lyssenko Vadim, Jørn Märcher Hvam

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    Summary form only given. We present an experimental and theoretical investigation of ultrafast transient four-wave mixing (TFWM) of GaAs-AlGaAs quantum wells for simultaneous excitation of exciton and continuum states. Recent TFWM experiments on semiconductors have shown unexpected results when both discrete exciton states and continuum states have been excited simultaneously by ultrafast laser pulses. The decay of the signal, as a function of delay, is significantly faster than the dephasing time of the excitons.
    Original languageEnglish
    Title of host publicationSummaries of Papers Presented at the Quantum Electronics and Laser Science Conference
    Publication date1996
    ISBN (Print)15-57-52444-0
    Publication statusPublished - 1996
    Event1996 Quantum Electronics and Laser Science Conference - Anaheim, CA, United States
    Duration: 2 Jun 19967 Jun 1996


    Conference1996 Quantum Electronics and Laser Science Conference
    Country/TerritoryUnited States
    CityAnaheim, CA
    Internet address

    Bibliographical note

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