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Anti-stokes luminescence in a coupled system: A natural consequence of quantum oscillation

Author(s)
Kim, DSKo, HSKim, YMRhee, SJHong, SCYee, YHYee, DSKhim, JSKim, WSWoo, JC
Issued Date
1996
DOI
10.1016/0960-8974(96)83635-7
URI
https://scholarworks.unist.ac.kr/handle/201301/54696
Fulltext
https://www.sciencedirect.com/science/article/pii/0960897496836357?via%3Dihub
Citation
PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS, v.33, no.1-3, pp.161 - 168
Abstract
Strong anti-Stokes (AS) luminescence from the narrow well (NW) is observed in GaAs/AlxGa1-xAs asymmetric double quantum wells when the wide well (WW) is photoexcited. The normalized efficiency of this AS luminescence decreases slightly with temperature and excitation intensity. Furthermore, the normalized efficiency is of the same order of magnitude with the Stokes transfer rate from the NW to the WW. From these results, we propose quantum oscillation of electron and hole wave functions as the mechanism for the AS luminescence.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
ISSN
0146-3535
Keyword
WELLSEXCITONS

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