FEMTOSECOND TIME-RESOLVED MOLECULAR-DYNAMICS OF A POLYDIACETYLENE BACKBONE

Authors
BIGOT JY PHAM TA BARISIEN T
Citation
Jy. Bigot et al., FEMTOSECOND TIME-RESOLVED MOLECULAR-DYNAMICS OF A POLYDIACETYLENE BACKBONE, Chemical physics letters, 259(5-6), 1996, pp. 469-474
Citations number
19
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
259
Issue
5-6
Year of publication
1996
Pages
469 - 474
Database
ISI
SICI code
0009-2614(1996)259:5-6<469:FTMOAP>2.0.ZU;2-4
Abstract
We report the observation of the molecular motion corresponding to the C=C stretching vibrations along the backbone of a polydiacetylene, us ing time resolved pump-probe spectroscopy with 9 fs optical pulses. Th e associated wavepacket oscillates with 23 fs period before it is damp ed on the excited state potential. Detailed features of the wavepacket motion are observed like a rr dephasing in the spectral region of ind uced absorption to higher excited states.