ULTRAFAST RELAXATION OF PHOTOINDUCED DARKENING IN A FULLERITE

Authors
KARDASH IE LETOKHOV VS LOZOVIK YE MATVEETS YA STEPANOV AG FARZTDINOV VM
Citation
Ie. Kardash et al., ULTRAFAST RELAXATION OF PHOTOINDUCED DARKENING IN A FULLERITE, JETP letters, 58(2), 1993, pp. 138-142
Citations number
8
Categorie Soggetti
Physics
Journal title
JETP letters → ACNP
ISSN journal
00213640
Volume
58
Issue
2
Year of publication
1993
Pages
138 - 142
Database
ISI
SICI code
0021-3640(1993)58:2<138:UROPDI>2.0.ZU;2-0
Abstract
The mechanisms for excitation and energy relaxation of charge carriers over times approximately 100 fs in a C60 film have been studied by fe mtosecond laser spectroscopy. The absorption was studied as a function of the laser beam intensity. An increase in the absorption, with a pe ak at vanishingly small delay times, gives way to an electronic-vibrat ional relaxation with time scales tau1 approximately 1 ps and tau2 app roximately 30 ps.