Optical-limiting properties of a push-pull diphenyl-butadiene
Langue
en
Article de revue
Ce document a été publié dans
Optics Communications. 1999-10, vol. 169, n° 1-6, p. 325-332
Elsevier
Résumé en anglais
The optical-limiting behavior of 1-(p-N,N-dimethylamino)-4-(p-cyanophenyl)-1,3-butadiene (DCB) solution in dichloromethane was experimentally and theoretically studied at 532 nm with nanosecond and picosecond pulses. ...Lire la suite >
The optical-limiting behavior of 1-(p-N,N-dimethylamino)-4-(p-cyanophenyl)-1,3-butadiene (DCB) solution in dichloromethane was experimentally and theoretically studied at 532 nm with nanosecond and picosecond pulses. Energy-dependent transmissivity measurements were fitted using a three-level molecular model including two-photon absorption. The best fits were obtained with very high two-photon absorption cross-sections, indicating that two-photon absorption is the predominant mechanism of the strong optical limiting behavior observed in a DCB solution.< Réduire
Mots clés en anglais
Optical limiting
Two-photon absorption
Diphenyl-butadiene
Picosecond spectroscopy
Nonlinear transmission
Origine
Importé de halUnités de recherche