Infoscience

Journal article

Resonant femtosecond emission from quantum well excitons: The role of Rayleigh scattering and luminescence

We study the ultrafast properties of secondary radiation of semiconductor quantum wells under resonant excitation. We show that the exciton density dependence allows one to identify the origin of secondary radiation. At high exciton densities, the emission is due to incoherent luminescence with a rise time determined by exciton-exciton scattering. For low densities, when the distance between excitons is much larger than their diameter, the temporal shape is independent of density and rises quadratically, in excellent agreement with recent theories for resonant Rayleigh scattering.

    Keywords: RADIATIVE RECOMBINATION ; RAMAN-SCATTERING ; EXCITATION ; STATES

    Note:

    Univ oxford,dept phys,clarendon lab,oxford ox1 3pu,england. humboldt univ berlin,inst phys,d-10117 berlin,germany. weizmann inst sci,dept phys,il-76100 rehovot,israel. Haacke, S, SWISS FED INST TECHNOL,INST MICRO & OPTOELECT,CH-1015 LAUSANNE,SWITZERLAND.

    ISI Document Delivery No.: WN079

    Times Cited: 96

    Cited Reference Count: 22

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    Reference

    Record created on 2007-08-31, modified on 2016-08-08

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