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
G. P. Banfi, V. Degiorgio, D. Fortusini, and M. Bellini, "Measurement of the two-photon absorption coefficient of semiconductor nanocrystals by using tunable femtosecond pulses," Opt. Lett. 21, 1490-1492 (1996)