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

Year: 1996

Authors: Banfi G.P., Degiorgio V., Fortusini D., Bellini M.

Autors Affiliation: Ist. Naz. per la Fis. della Materia, Dipartimento di Electtronica, Universitá di Pavia, 27100 Pavia, Italy; Europ. Lab. for Nonlinear Spectrosc., 50125 Firenze, Italy

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.

Journal/Review: OPTICS LETTERS

Volume: 21 (18)      Pages from: 1490  to: 1492

KeyWords: 2-photon absorption; Doped glasses; Band-gap; Nonlinearity
DOI: 10.1364/OL.21.001490

Citations: 14
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