Abstract

Dynamics of the real and imaginary parts of the dielectric permittivity of a photoexcited silver layer has been investigated by means of femtosecond pump–probe spectroscopy in a surface plasmon resonance Kretschmann configuration. Both real and imaginary permittivity parts experience changes in the visible–near-IR regions under silver excitation at 400nm. The changes are stronger, particularly those of the imaginary part, at longer wavelengths. Three excited states are formed during the relaxation process, which are attributed to the nonequilibrium and equilibrium heated electron distributions and lattice heating. Different time evolutions of the real and imaginary dielectric permittivity parts are explained by different contributions from interband and intraband transitions caused by plasma frequency and electron scattering frequency variations.

© 2008 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Ultrafast pump-probe surface plasmon resonance spectroscopy of thin gold films

A. Devizis, V. Vaicikauskas, and V. Gulbinas
Appl. Opt. 45(11) 2535-2539 (2006)

Femtosecond electron-lattice thermalization dynamics in a gold film probed by pulsed surface plasmon resonance

Alexandre A. Kolomenskii, Ryan Mueller, Joshua Wood, James Strohaber, and Hans A. Schuessler
Appl. Opt. 52(30) 7352-7359 (2013)

Determination of dielectric permittivity and thickness of a metal layer from a surface plasmon resonance experiment

Helene E. de Bruijn, Rob P. H. Kooyman, and Jan Greve
Appl. Opt. 29(13) 1974-1978 (1990)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription