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Measurement of the two-photon absorption coefficient of semiconductor nanocrystals by using tunable femtosecond pulses

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Abstract

By using femtosecond pulses from traveling-wave parametric generation we have accurately measured the absolute value and the frequency dispersion of the two-photon absorption coefficient of semiconductor nanocrystals embedded in a glass matrix. Comparison is made with bulk semiconductors.

© 1996 Optical Society of America

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