Nonlinear Plasmonics

Norbert Kroo, Sandor Varro, Gyz Farkas, P. Dombi, Daniel Oszetzky, A. Nagy, Aladar Czitrovszky

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Theoretical and experimental results on laser light-excited nonlinear surface plasmon (SPO) phenomena are reported. Strongly directional light emission of SPOs was indicated and observed already at relatively low cw laser power. The width of this peaked directional distribution seems to depend on the laser power. Another manifestation of nonlinearity was found by observing a weak squeezing effect in the SPO-emitted fundamental light. At high (pulsed) laser intensity an evanescent (SPO) field enhanced second harmonic emission and a broad metallic luminescent spectrum was found. The second harmonic component is spectrally broader than the fundamental SPO-emitted light. Our simple theoretical model describes all of these observations qualitatively, except for the broad luminescent spectrum.

Original languageEnglish
Pages (from-to)3203-3210
Number of pages8
JournalJournal of Modern Optics
Volume55
Issue number19-20
DOIs
Publication statusPublished - Nov 2008

Fingerprint

lasers
harmonics
compressing
light emission
pulsed lasers
nonlinearity

Keywords

  • Femtosecond phenomena
  • Surface nonlinear optics
  • Surface plasmons

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Kroo, N., Varro, S., Farkas, G., Dombi, P., Oszetzky, D., Nagy, A., & Czitrovszky, A. (2008). Nonlinear Plasmonics. Journal of Modern Optics, 55(19-20), 3203-3210. https://doi.org/10.1080/09500340802428272

Nonlinear Plasmonics. / Kroo, Norbert; Varro, Sandor; Farkas, Gyz; Dombi, P.; Oszetzky, Daniel; Nagy, A.; Czitrovszky, Aladar.

In: Journal of Modern Optics, Vol. 55, No. 19-20, 11.2008, p. 3203-3210.

Research output: Contribution to journalArticle

Kroo, N, Varro, S, Farkas, G, Dombi, P, Oszetzky, D, Nagy, A & Czitrovszky, A 2008, 'Nonlinear Plasmonics', Journal of Modern Optics, vol. 55, no. 19-20, pp. 3203-3210. https://doi.org/10.1080/09500340802428272
Kroo N, Varro S, Farkas G, Dombi P, Oszetzky D, Nagy A et al. Nonlinear Plasmonics. Journal of Modern Optics. 2008 Nov;55(19-20):3203-3210. https://doi.org/10.1080/09500340802428272
Kroo, Norbert ; Varro, Sandor ; Farkas, Gyz ; Dombi, P. ; Oszetzky, Daniel ; Nagy, A. ; Czitrovszky, Aladar. / Nonlinear Plasmonics. In: Journal of Modern Optics. 2008 ; Vol. 55, No. 19-20. pp. 3203-3210.
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