PHOTOSELECTION OF LUMINESCENT MOLECULES IN ANISOTROPIC MEDIA IN THE CASE OF 2-PHOTON EXCITATION .2. EXPERIMENTAL STUDIES OF HOECHST-33342 IN STRETCHED POLY(VINYL ALCOHOL) FILMS

Authors
KAWSKI A GRYCZYNSKI Z GRYCZYNSKI I LAKOWICZ JR PISZCZEK G
Citation
A. Kawski et al., PHOTOSELECTION OF LUMINESCENT MOLECULES IN ANISOTROPIC MEDIA IN THE CASE OF 2-PHOTON EXCITATION .2. EXPERIMENTAL STUDIES OF HOECHST-33342 IN STRETCHED POLY(VINYL ALCOHOL) FILMS, Zeitschrift fur Naturforschung. A, A journal of physical sciences, 51(9), 1996, pp. 1037-1041
Citations number
14
Categorie Soggetti
Chemistry Physical",Physics
Journal title
Zeitschrift fur Naturforschung. A, A journal of physical sciences → ACNP
ISSN journal
09320784
Volume
51
Issue
9
Year of publication
1996
Pages
1037 - 1041
Database
ISI
SICI code
0932-0784(1996)51:9<1037:POLMIA>2.0.ZU;2-4
Abstract
It was found by investigating dichroism and emission anisotropy in the case of one- and two-photon excitation of Hoechst 33342 [bis-benzimid e,2,5'-bi- 1H-benzimidazole, 2'-(4-ethoxyphenyl)-5-5(4-methyl-1-pipera zinyl)] in stretched poly(vinyl alcohol) (PVA) films, that the absorpt ion and fluorescence transition moments lie along the long molecular a xis of the molecule studied. The slight deviation of the transition mo ment direction in fluorescence (about 8 degrees) from that in absorpti on can be due to the incomplete linearity of the Hoechst molecule.