Authors

I. Cohanoschi; K. D. Belfield; C. Toro;F. E. Hernandez

Comments

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Abbreviated Journal Title

J. Chem. Phys.

Keywords

EXCITATION; ENHANCEMENT; MICROSCOPY; Physics, Atomic, Molecular & Chemical

Abstract

Herein, we report the study of the three-photon absorption cross-section dependence on solvents parameters for a highly conjugated organic dye, 2,2(')-(4,4(')-(1E,1(')E)-2,2(')-(9,9-didecyl-9H-fluorene-2,7-diyl) bis(ethene-2,1-diyl)bis(4,1-phenylene))dibenzo[d]thiazole (A-pi-pi-pi-A). The three-photon absorption cross-section was measured for this organic dye in solution in four different solvents with polarity function, Delta f between 0.162 and 0.247. The experiments show how the solvent's reorientation of the electrons and polarity contribute to the 3PA cross-section. Multiphoton-absorption experiments of A-pi-pi-pi-A in all four different solvents were performed with a tunable OPG pumped by a 25 picosecond Nd-YAG laser.

Journal Title

Journal of Chemical Physics

Volume

125

Issue/Number

16

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

4

WOS Identifier

WOS:000241722000002

ISSN

0021-9606

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