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Excited-state absorption of excitons and biexcitons confined in CuCl quantum dots

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4 Author(s)
Miyajima, K. ; Graduate Sch. of Eng. Sci., Osaka Univ., Japan ; Kagotani, Y. ; Edamatsu, K. ; Itoh, T.

This study reports the first observation of the temporal evolution of the infrared transient absorption (IRTA) of CuCl quantum dots by means of tunable ultrafast pump-probe spectroscopy technique based on two optical parametric amplifiers (pulse width: 2 ps, repetition rate: 1 kHz). Results show that the IRTA originates not only from the excitons but also from the biexcitons confined in the quantum dots under high excitation intensities.

Published in:

Quantum Electronics Conference, 2003. EQEC '03. European

Date of Conference:

22-27 June 2003