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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 10,
  • Issue 4,
  • pp. 184-187
  • (2006)

Dynamics and Bleaching of Ground State in CdSe/ZnS Quantum Dots

Open Access Open Access

Abstract

For resonant excitation of the ground state <TEX>$1s^e-1S^h_{3/2}$</TEX>, dynamics of 'the electron-hole pair in a CdSe quantum dot was investigated by degenerate pump-probe measurement. At low e-h pair densities, the decay of <TEX>$1s^e-1S^h_{3/2}$</TEX> state is dominated by radiative recombination. As the number of the electron-hole pairs increases, new decay features become significant. Theoretical comparison suggests this is attributed to the bi-molecular and Auger-type scattering.

© 2006 Optical Society of Korea

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