Homogeneous linewidths and confined-phonon sidebands of the resonant exciton luminescence of CuCl quantum dots

K. Edamatsu, T. Itoh, K. Matsuda, S. Saikan

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We investigated the resonant luminescence spectra of CuCl quantum dots in NaCl and glass matrices with high spectral resolution. The resonant luminescence consists of a sharp zero-phonon line accompanied by Stokes and anti-Stokes sidebands. We confirmed that the sidebands originate from lattice vibrations confined in the quantum dots. The observed ultrasharp homogeneous width of the zero-phonon line indicates a very long phase-relaxation time of the confined excitons at low temperature. The temperature dependence of the homogeneous width is explained by a two-phonon Raman process associated with the confined phonons.

Original languageEnglish
Article number195317
Pages (from-to)1953171-1953175
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number19
Publication statusPublished - 2001 Nov 15
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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