Ultrafast Field-Dependent Response of Bandedge Photogenerated Electrons in Quantum-Well Structures

Ravindra P. Joshi, Robert O. Grondin, Samir M. El-Ghazaly

    Research output: Contribution to journalArticlepeer-review

    2 Scopus citations


    We analyze the field-dependent femtosecond dynamics of bandedge photogenerated electrons undergoing parallel transport in quantum-well structures. the intracollisional field effect, breakdown of the Fermi golden rule, quantization of the phonon modes, and transient charge variations are all comprehensively included. Our electron heating rates at zero fields are in agreement with experiments. the results are indicative of an adequate description of the electron-phonon interaction in two-dimensional systems. At high fields we observe an energy overshoot structure in keeping with recently observed data, without any real-space transfer.

    Original languageEnglish (US)
    Pages (from-to)2456-2463
    Number of pages8
    JournalIEEE Journal of Quantum Electronics
    Issue number10
    StatePublished - 1992

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics
    • Condensed Matter Physics
    • Electrical and Electronic Engineering


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