Fluorescent properties of organic molecules under high-power pulsed laser excitation

Citation
Tn. Kopylova et al., Fluorescent properties of organic molecules under high-power pulsed laser excitation, OPT SPECTRO, 85(5), 1998, pp. 711-714
Citations number
23
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
OPTICS AND SPECTROSCOPY
ISSN journal
0030400X → ACNP
Volume
85
Issue
5
Year of publication
1998
Pages
711 - 714
Database
ISI
SICI code
0030-400X(199811)85:5<711:FPOOMU>2.0.ZU;2-G
Abstract
Results of the study of the intensity, the pulse length, and the emission s pectra of trans-stilbene and 2-(4-pyridyl)-5-phenyloxazole (4PyPO) excited by high-power (10(23)-10(26)) phot/(cm(2) s) radiation from an exciplex XeC l laser are presented. The anomalous increase in the emission intensity is found for ethanol solutions of 4PyPO, trans-stilbene, and the 4PyPO photoca tion in aqueous solution, and the blue (<10 nm) shift of the spectra was ob served with increasing excitation intensity. The reasons for the appearance of the special features of emission properties of the compounds studied un der high-power laser excitation are discussed.