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Ultrafast dynamics of excitonic scattering and gain in narrow ZnCdSe/ZnSe multiple quantum wells

Abstract:
Time-resolved photoluminescence has been used to investigate the optical properties of a narrow 25 Angstrom Zn0.8Cd0.2Se/ZnSe multiple quantum well structure as a function of carrier density and temperature. At low temperatures, it is found that the luminescence is excitonic over all densities up to and above threshold. The underlying gain mechanism in cleaved 380 mu m cavities is excitonic in nature. In the low-density regime, the luminescence remains excitonic up to room temperature. (C) 1998 Elsevier Science B.V. All rights reserved.
Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Volume:
184
Pages:
645-649
Publication date:
1998-02-05
ISSN:
0022-0248
URN:
uuid:7ae973d3-26d3-4abd-8c55-36e74e62d2df
Source identifiers:
23139
Local pid:
pubs:23139

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