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Investigation of inter-valley scattering and hot phonon dynamics in GaAs quantum wells using femtosecond luminescence intensity correlation

Abstract:
Photoluminescence intensity correlation measurements of GaAs quantum wells using 120 fs laser pulses show relatively slow relaxation times ≤ 10 ps at high energy close to the L valley conduction band minimum. This value is consistent with recent measurements of the L → Γ scattering time. However, theoretical estimates show that nonequilibrium phonon effects can also give rise to slow relaxation on this timescale.

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
Journal:
Superlattices and Microstructures
Volume:
6
Issue:
2
Pages:
199-202
Publication date:
1989-01-01
DOI:
EISSN:
1096-3677
ISSN:
0749-6036
URN:
uuid:1f909004-0979-4c50-9f0b-8e7b59dd070f
Source identifiers:
134646
Local pid:
pubs:134646
Language:
English

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