OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 10 — Apr. 1, 2008
  • pp: 1632–1637

Ultrafast dynamics of the real and imaginary permittivity parts of a photoexcited silver layer revealed by surface plasmon resonance

A. Devižis and V. Gulbinas  »View Author Affiliations


Applied Optics, Vol. 47, Issue 10, pp. 1632-1637 (2008)
http://dx.doi.org/10.1364/AO.47.001632


View Full Text Article

Enhanced HTML    Acrobat PDF (1065 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

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 400 nm . 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

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(300.6530) Spectroscopy : Spectroscopy, ultrafast
(310.6860) Thin films : Thin films, optical properties

ToC Category:
Optics at Surfaces

History
Original Manuscript: October 2, 2007
Revised Manuscript: February 12, 2008
Manuscript Accepted: February 26, 2008
Published: March 31, 2008

Citation
A. Devižis and V. Gulbinas, "Ultrafast dynamics of the real and imaginary permittivity parts of a photoexcited silver layer revealed by surface plasmon resonance," Appl. Opt. 47, 1632-1637 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-10-1632


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. M. Bonn, D. N. Denzler, S. Funk, M. Wolf, S.-S. Wellershoff, and J. Hohlfeld, “Ultrafast electron dynamics at metal surfaces: competition between electron-phonon coupling and hot-electron transport,” Phys. Rev. B 61, 1101-1105 (2000). [CrossRef]
  2. S. I. Anisimov, B. L. Kapeliovich, and T. L. Perel'man, “Electron emission from metal surfaces exposed to ultrashort laser pulses,” Sov. Phys. JETP 39, 375-377 (1974).
  3. J. Hohlfeld, S. S. Wellershoff, J. Gudde, U. Conrad, V. Jahnke, and E. Matthias, “Electron and lattice dynamics following optical excitation of metals,” Chem. Phys. 251, 237-258 (2000). [CrossRef]
  4. N. Del Fatti, R. Bouffanais, F. Vallée, and C. Flytzanis, “Nonequilibrium electron interactions in metal films,” Phys. Rev lett. 81, 922-925 (1998). [CrossRef]
  5. H. E. Elsayed-Ali, T. Juhasz, G. O. Smith, and W. E. Bron, “Femtosecond thermoreflectivity and thermotransmissivity of polycrystalline and single-crystalline gold films,” Phys. Rev. B 43, 4488-4491 (1991). [CrossRef]
  6. C. Voisin, D. Christofilos, N. Del Fatti, and F. Vallee, “Femtosecond surface plasmon resonance dynamics and electron-electron interactions in silver nanoparticles,” Eur. Phys. J. D 16, 139-144 (2001). [CrossRef]
  7. R. H. M. Groeneveld, R. Sprik, and A. Lagendijk, “Ultrafast relaxation of electrons probed by surface plasmons at a thin silver film,” Phys. Rev. Lett. 64, 784-787 (1990). [CrossRef] [PubMed]
  8. A. Devižis, V. Vaicikauskas, and V. Gulbinas, “Ultrafast pump-probe surface plasmon resonance spectroscopy of thin gold films,” Appl. Opt. 45, 2535-2539 (2006). [CrossRef] [PubMed]
  9. H. Raether, Surface Plasmons on Smooth and Rough Surfaces and on Gratings (Springer-Verlag, 1988).
  10. M. van Exter and A. Lagendijk, “Ultrashort surface--plasmon and phonon dynamics,” Phys. Rev. Lett. 60, 49-52 (1988). [CrossRef] [PubMed]
  11. R. H. M. Groeneveld, R. Sprik, and A. Lagendijk, “Femtosecond spectroscopy of electron-electron and electron-phonon energy relaxation in Ag and Au,” Phys. Rev. B 51, 11433-11445 (1995). [CrossRef]
  12. E. Kretschmann, “Die Bestimmung optischer Konstanten von Metallen durch Anregung von Oberflachenplasmaschwingungen,” Z. Phys. 241, 313-324 (1971). [CrossRef]
  13. E. A. Taft and H. R. Philipp, “Optical constants of silver,” Phys. Rev. 121, 1100-1103 (1961). [CrossRef]
  14. P. B. Johnson and R. W. Christy, “Optical constants of the noble metals,” Phys. Rev. B 6, 4370-4379 (1972). [CrossRef]
  15. N. Del Fatti, C. Voisin, M. Achermann, S. Tzortzakis, D. Christofilos, and F. Valle, “Nonequilibrium electron dynamics in noble metals,” Phys. Rev. B 61, 16956-16965 (2000). [CrossRef]
  16. R. Rosei, C. H. Culp, and J. H. Weaver, “Temperature modulation of the optical transition involving Fermi surface in Ag: experimental,” Phys. Rev. B 10, 484-489 (1974). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited