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1998 | 94 | 2 | 139-146
Article title

Ultrafast Phenomena in II-VI Semiconductors

Content
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Languages of publication
EN
Abstracts
EN
We review studies on the coherent and incoherent exciton dynamics in ZnSe-based quantum wells. First, the exciton-exciton scattering parameter is determined from femtosecond four-wave mixing as a function of background exciton density generated by a prepulse. A linear increase in the excitonic homogeneous linewidth is found as a function of the background exciton density with significant different scattering parameters for the cases of interaction with coherent or incoherent excitons. Second, the thermalization dynamics of spectrally narrow hot-exciton distributions is investigated by time-resolved phonon sideband spectroscopy. Thermalization assisted by acoustic phonons occurs on a 100 ps timescale, which is in good agreement with model calculations in time dependent perturbation theory.
Keywords
EN
Year
Volume
94
Issue
2
Pages
139-146
Physical description
Dates
published
1998-08
References
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv94z204kz
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