A series of thiophenic monomers functionalized with different chromophoric groups have been optically characterized in view of preparation of polymeric films for second-order nonlinear optics and electrooptics. In order to investigate the optical behaviour inside a solid host matrix, the molecules have been physically dispersed in poly(methylmethacrylate) (PMMA) films and poled through high-temperature corona-poling for characterization through in situ second harmonic generation and ex situ angle-resolved spectroscopy. The values of dipole moment μ and optical hyperpolarizability β have been estimated inside the host matrix and related to the molecular structure. For one of the chromophores the long-term reorientation dynamics has been monitored in order to investigate the stability and the interaction with the polymeric environment. © 2001 Elsevier Science B.V.
Optical characterization of alkyl-thiophenic monomers functionalized with second-order nonlinear chromophores / Pizzoferrato R.; Sarcinelli F.; Angeloni M.; Casalboni M.; Bertinelli F.; Costa-Bizzarri P.; Della-Casa C.; Lanzi M.. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - STAMPA. - 343:3-4(2001), pp. 205-211. [10.1016/S0009-2614(01)00700-X]
Optical characterization of alkyl-thiophenic monomers functionalized with second-order nonlinear chromophores
Lanzi M.
2001
Abstract
A series of thiophenic monomers functionalized with different chromophoric groups have been optically characterized in view of preparation of polymeric films for second-order nonlinear optics and electrooptics. In order to investigate the optical behaviour inside a solid host matrix, the molecules have been physically dispersed in poly(methylmethacrylate) (PMMA) films and poled through high-temperature corona-poling for characterization through in situ second harmonic generation and ex situ angle-resolved spectroscopy. The values of dipole moment μ and optical hyperpolarizability β have been estimated inside the host matrix and related to the molecular structure. For one of the chromophores the long-term reorientation dynamics has been monitored in order to investigate the stability and the interaction with the polymeric environment. © 2001 Elsevier Science B.V.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
