Energy and dephasing relaxation of weakly localized quasi-two-dimensional excitons in quantum well structures

Research output: Contribution to journalArticle

Abstract

The mechanisms of energy and dephasing relaxation of quasi-two-dimensional excitons in quantum well structures are clarified for both the localized and delocalized excitons. The recently observed energy relaxation rate of the n = 1 heavy hole exciton and the energy and temperature dependences of the homogeneous linewidth (ρh) are explained quantitatively. The dependence of ρh on the quantum well thickness is predicted. The relaxation mechanisms of the higher lying (e.g., n = 2) exciton states are also discussed.

Original languageEnglish
Pages (from-to)64-66
Number of pages3
JournalJournal of Luminescence
Volume38
Issue number1-6
DOIs
Publication statusPublished - 1987 Dec 1
Externally publishedYes

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Semiconductor quantum wells
excitons
quantum wells
energy
Linewidth
temperature dependence
LDS 751
Temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

Cite this

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title = "Energy and dephasing relaxation of weakly localized quasi-two-dimensional excitons in quantum well structures",
abstract = "The mechanisms of energy and dephasing relaxation of quasi-two-dimensional excitons in quantum well structures are clarified for both the localized and delocalized excitons. The recently observed energy relaxation rate of the n = 1 heavy hole exciton and the energy and temperature dependences of the homogeneous linewidth (ρh) are explained quantitatively. The dependence of ρh on the quantum well thickness is predicted. The relaxation mechanisms of the higher lying (e.g., n = 2) exciton states are also discussed.",
author = "Toshihide Takagahara",
year = "1987",
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doi = "10.1016/0022-2313(87)90062-7",
language = "English",
volume = "38",
pages = "64--66",
journal = "Journal of Luminescence",
issn = "0022-2313",
publisher = "Elsevier",
number = "1-6",

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AU - Takagahara, Toshihide

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N2 - The mechanisms of energy and dephasing relaxation of quasi-two-dimensional excitons in quantum well structures are clarified for both the localized and delocalized excitons. The recently observed energy relaxation rate of the n = 1 heavy hole exciton and the energy and temperature dependences of the homogeneous linewidth (ρh) are explained quantitatively. The dependence of ρh on the quantum well thickness is predicted. The relaxation mechanisms of the higher lying (e.g., n = 2) exciton states are also discussed.

AB - The mechanisms of energy and dephasing relaxation of quasi-two-dimensional excitons in quantum well structures are clarified for both the localized and delocalized excitons. The recently observed energy relaxation rate of the n = 1 heavy hole exciton and the energy and temperature dependences of the homogeneous linewidth (ρh) are explained quantitatively. The dependence of ρh on the quantum well thickness is predicted. The relaxation mechanisms of the higher lying (e.g., n = 2) exciton states are also discussed.

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