Homogeneous linewidths and confined-phonon sidebands of the resonant exciton luminescence of (formula presented) quantum dots

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

研究成果: Article査読

抄録

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.

本文言語English
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
64
19
DOI
出版ステータスPublished - 2001 1月 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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