Abbreviated Journal Title
J. Chem. Phys.
EXCITATION; ENHANCEMENT; MICROSCOPY; Physics, Atomic, Molecular & Chemical
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 of Chemical Physics
Cohanoschi, Ion; Belfield, Kevin D.; Toro, Carlos; and Hernández, Florencio E., "Solvent effects on the three-photon absorption cross-section of a highly conjugated fluorene derivative" (2006). Faculty Bibliography 2000s. 6038.