Title :
Three and four-photon absorption of a multiphoton absorbing fluorescent probe
Author :
Hernandez, F.E. ; Belfield, Kevin D. ; Cohanoschi, Ion ; Balu, Mihaela ; Schafer, Katherine J.
Author_Institution :
Dept. of Chem. & SoO/CREOL, Central Florida Univ., Orlando, FL, USA
Abstract :
We report the four-photon-excited fluorescence emission of (7-benzothiazol-2-yl-9,-didecylfluoren-2-yl)-diphenylamine in hexane and its four-photon absorption cross-section /spl sigma/´ = 8/spl middot/10/sup -109/ cm/sup 8/ s/sup 3/ /spl middot/photon/sup -3/ for the transition S/sub 0/ to S/sub 1/, when excited at 1600 nm. This value is 10/sup 11/ times larger than that of naphthalene.
Keywords :
fluorescence; multiphoton processes; optical materials; organic compounds; photoexcitation; (7-benzothiazol-2-yl-9,-didecylfluoren-2-yl)-diphenylamine; 1600 nm; four-photon absorption; four-photon-excited fluorescence emission; multiphoton absorbing fluorescent probe; naphthalene; three-photon absorption;
Conference_Titel :
Lasers and Electro-Optics, 2004. (CLEO). Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-777-6
