Abstract
The possibility of optically creating and probing a nonequilibrium transient electron population with femtosecond pulses has been recently applied to the investigation of electron dynamics in metal nanoparticles.14־ Apart from alteration of the electron scattering processes by confinement, the transient response of metal nanoparticles is modified by the surface plasman resonance consequence of the dielectric confinement. In a classical description, this corresponds to a collective oscillation of the electrons in a nanoparticle, and an important aspect in this case is the coupling between this collective motion and the individual motion of the electrons.
© 1998 Optical Society of America
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