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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 28, Iss. 9 — May. 1, 2003
  • pp: 713–715

Local second-harmonic generation enhancement on gold nanostructures probed by two-photon microscopy

C. Anceau, S. Brasselet, J. Zyss, and P. Gadenne  »View Author Affiliations


Optics Letters, Vol. 28, Issue 9, pp. 713-715 (2003)
http://dx.doi.org/10.1364/OL.28.000713


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Abstract

The localization of surface second-harmonic generation (S-SHG) enhancements from granular gold structures that exhibit local plasmon resonance was investigated. A two-photon microscopy technique was used to perform high spatial resolution S-SHG imaging. The magnitude and the spatial density of S-SHG enhancement confined in submicroscopic regions are strongly dependent on the morphology of the gold’s surface. Polarization measurements of local S-SHG responses reveal the local field anisotropy in enhancement regions and furthermore prove the incoherent and strongly depolarized nature of the emission, which is attributed to ultrafast fluctuations of the enhancement location in the focal volume.

© 2003 Optical Society of America

OCIS Codes
(160.3900) Materials : Metals
(190.4160) Nonlinear optics : Multiharmonic generation
(190.4350) Nonlinear optics : Nonlinear optics at surfaces
(260.5430) Physical optics : Polarization
(300.6420) Spectroscopy : Spectroscopy, nonlinear

Citation
C. Anceau, S. Brasselet, J. Zyss, and P. Gadenne, "Local second-harmonic generation enhancement on gold nanostructures probed by two-photon microscopy," Opt. Lett. 28, 713-715 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-9-713

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