FEMTOSECOND PHOTOINDUCED DICHROISM IN POLYDIACETYLENE 4BCMU FILM

Authors
ZHENG LX FENG ZG KNOPF FC
Citation
Lx. Zheng et al., FEMTOSECOND PHOTOINDUCED DICHROISM IN POLYDIACETYLENE 4BCMU FILM, Journal of applied physics, 78(6), 1995, pp. 4288-4290
Citations number
15
Categorie Soggetti
Physics, Applied
Journal title
Journal of applied physics → ACNP
ISSN journal
00218979
Volume
78
Issue
6
Year of publication
1995
Pages
4288 - 4290
Database
ISI
SICI code
0021-8979(1995)78:6<4288:FPDIP4>2.0.ZU;2-O
Abstract
Femtosecond pulses were used to study the photoexcitation dynamics and transient photoinduced dichroism in polydiacetylene 4BCMU film. Ultra fast photoinduced dichroism acid optical Kerr gate response were obser ved. These measurements allowed estimation of the diffusion constant ( D similar to 0.1 cm(2)/s), nonlinear index of refraction (n2 similar t o 10(-8) esu), and third-order susceptibility (Delta(chi)((3))similar to 6 X 10(-10) esu), in the film. (C) 1995 American Institute of Physi cs.