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Proceedings Paper

Photophysical and second-order nonlinear properties of push-pull fluorinated 4-(dicyanomethylene)-pyranes
Author(s): Stanislav L. Bondarev; Valentin N. Knyukshto; S. A. Tikhomirov; I. I. Kalosha; V. I. Tyvorski; D. N. Bobrov; N. M. Nevar; A. A. Turban; O. G. Kulinkovich; Isabelle N. Ledoux-Rak
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Paper Abstract

The photophysical and nonlinear properties of some push-pull fluorinated 4-(dicyanomethylene)- pyranes using the steady- sate and time-resolved picosecond spectroscopies with an electric-field-induced second-harmonic-generation technique have been investigated. Strong fluorescence quenching and large shifts of time-resolved transient picosecond spectra on going form nonpolar to polar solvents are connected with effective charge transfer interactions of polar singlet excited molecules with a polar environment. The high second- order polarizabilty (beta) equals 260 X 10-30 esu for one of the investigated push-pull pyranes allows to propose using such kind of molecules in the development of second- harmonic-generation elements.

Paper Details

Date Published: 24 July 2002
PDF: 10 pages
Proc. SPIE 4751, ICONO 2001: Nonlinear Optical Phenomena and Nonlinear Dynamics of Optical Systems, (24 July 2002); doi: 10.1117/12.475927
Show Author Affiliations
Stanislav L. Bondarev, Institute of Molecular and Atomic Physics (Belarus)
Valentin N. Knyukshto, Institute of Molecular and Atomic Physics (Belarus)
S. A. Tikhomirov, Institute of Molecular and Atomic Physics (Belarus)
I. I. Kalosha, Institute of Molecular and Atomic Physics (Belarus)
V. I. Tyvorski, Belarus State Univ. (Belarus)
D. N. Bobrov, Belarus State Univ. (Bermuda)
N. M. Nevar, Belarus State Univ. (Belarus)
A. A. Turban, Belarus State Univ. (Belarus)
O. G. Kulinkovich, Belarus State Univ. (Belarus)
Isabelle N. Ledoux-Rak, France Telecom-CNET (France)


Published in SPIE Proceedings Vol. 4751:
ICONO 2001: Nonlinear Optical Phenomena and Nonlinear Dynamics of Optical Systems
Konstantin N. Drabovich; Nikolai S. Kazak; Vladimir A. Makarov; Alexander P. Voitovich, Editor(s)

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