3 PHOTON-INDUCED FLUORESCENCE FROM A CONJUGATED ORGANIC POLYMER FOR INFRARED FREQUENCY UP-CONVERSION

Authors
DAVEY AP BOURDIN E HENARI F BLAU W
Citation
Ap. Davey et al., 3 PHOTON-INDUCED FLUORESCENCE FROM A CONJUGATED ORGANIC POLYMER FOR INFRARED FREQUENCY UP-CONVERSION, Applied physics letters, 67(7), 1995, pp. 884-885
Citations number
9
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
67
Issue
7
Year of publication
1995
Pages
884 - 885
Database
ISI
SICI code
0003-6951(1995)67:7<884:3PFFAC>2.0.ZU;2-5
Abstract
Solutions of a paraphenylene ethynylene copolymer simultaneously absor b three photons of intense near infrared radiation. When the polymer r elaxes, it emits visible radiation which can be seen clearly by the na ked eye. Intensity dependent transmission studies have been used to me asure alpha(3), the three photon absorption coefficient. The value obt ained for a 10(-3) M solution of the polymer is 10(-22) cm(3) W-2, whi ch is remarkably large in view of the low concentration employed. (C) 1995 American Institute of Physics.