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Tunable mid-IR emission using a novel quantum dot-quantum well coupled system

Abstract:

Low-temperature photoluminescence studies of InSb/GaSb quantum dots strongly coupled to narrow InAs quantum wells are presented. Inclusion of the quantum well has enabled the dot emission energy to be reduced from 0.72 to 0.48 eV. Four-band k.p calculations have been used to illustrate the proposed mechanism. In particular, the importance of the InAs well width and GaSb 'spacer' thickness is discussed in terms of the overall character of the coupled state and the relative intensity of the tra...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Alphandery, E More by this author
Volume:
13
Issue:
2-4
Pages:
241-245
Publication date:
2002-03-05
DOI:
ISSN:
1386-9477
URN:
uuid:bb8f1fc6-01d4-4100-8161-a30956e94c5b
Source identifiers:
19142
Local pid:
pubs:19142

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