Measurements of the third-order nonlinearity of a soluble polycarbazolyldiacetylene by picosecond Z-scan at 1064 and 1500 nm
Anno: 2002
Autori: Giorgetti E., Toci G., Vannini M., Cavallo D., Dellepiane G.
Affiliazione autori: Ist. Di Ricerca Sulle Onde Elettromagnetiche Nello Carrara, Consiglio Naz. Della Ricerche (IROE-CNR), Via Panciatichi 64, 50127 Firenze, Italy; IEQ-CNR, Via Panciatichi 56/30, 50127 Firenze, Italy; INFM, INSTM, Università Di Genova, Via Dodecaneso 31, 16146 Genova, Italy
Abstract: The complex ?(3) of toluene solutions of polydiacetylene, polyDCHD-HS, was measured by using Z-scan at ? = 1064 and 1500 nm and with picosecond pulses in order to estimate the potentials of this polymer for application to all-optical switching devices. The values of the real part of molecular hyperpolarizability ? were -2.3 × 10-47 and -3 × 10-47m5/V2 at 1064 and 1500 nm, respectively. The nonlinear absorption could be better modeled with a three-photon process at both the wavelengths instead of the expected two-photon mechanism.
Giornale/Rivista: SYNTHETIC METALS
Volume: 127 (1-3) Da Pagina: 139 A: 142
Parole chiavi: Light polarization; Multiphoton processes; Nonlinear optics; Optical devices; Optical switches; Solutions; Toluene, Molecular hyperpolarizabilities, Organic polymersDOI: 10.1016/S0379-6779(01)00611-7Citazioni: 7dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui