ELECTRON DYNAMICS IN COPPER METALLIC NANOPARTICLES PROBED WITH FEMTOSECOND OPTICAL PULSES

Authors
BIGOT JY MERLE JC CREGUT O DAUNOIS A
Citation
Jy. Bigot et al., ELECTRON DYNAMICS IN COPPER METALLIC NANOPARTICLES PROBED WITH FEMTOSECOND OPTICAL PULSES, Physical review letters, 75(25), 1995, pp. 4702-4705
Citations number
23
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
75
Issue
25
Year of publication
1995
Pages
4702 - 4705
Database
ISI
SICI code
0031-9007(1995)75:25<4702:EDICMN>2.0.ZU;2-5
Abstract
The thermalization of electrons in copper nanoparticles embedded in gl ass is investigated using femtosecond pump-probe spectroscopy. The tim e dependent induced transmission is enhanced near the surface plasmon resonance of the nanoparticles, as opposed to the static one obtained with thermomodulation measurements. In addition, a slowing of the proc ess of electron cooling to the lattice temperature is observed at the plasmon resonance. These observations show the importance of quasipart icle collisions in confined metallic structures.