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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 11 — Nov. 1, 2009
  • pp: 2199–2203

Two-photon imaging of field enhancement by groups of gold nanostrip antennas

Sergey M. Novikov, Jonas Beermann, Thomas Søndergaard, Alexandra E. Boltasseva, and Sergey I. Bozhevolnyi  »View Author Affiliations


JOSA B, Vol. 26, Issue 11, pp. 2199-2203 (2009)
http://dx.doi.org/10.1364/JOSAB.26.002199


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Abstract

Resonant field enhancement by groups of 16 nm thin gold nanostrip antennas consisting of four strips (widths of 70, 100, and 130 nm) and fixed gap (50, 100, 150, or 200 nm) between them and positioned on a quartz substrate is investigated by reflection spectroscopy and two-photon photoluminescence scanning optical microscopy. We obtain good agreement with theoretical calculated reflection spectra and the investigated two-photon intensity dependence on the nanoantenna configurations and parameters of the illumination showed field enhancements increasing with increasing gaps in each group for the p-polarized (resonant) excitation, whereas these enhancement effects were not observed for the s-polarization (nonresonant) excitation.

© 2009 Optical Society of America

OCIS Codes
(180.5810) Microscopy : Scanning microscopy
(240.4350) Optics at surfaces : Nonlinear optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
(290.4210) Scattering : Multiple scattering

ToC Category:
Optics at Surfaces

History
Original Manuscript: August 7, 2009
Manuscript Accepted: September 15, 2009
Published: October 30, 2009

Virtual Issues
Vol. 4, Iss. 13 Virtual Journal for Biomedical Optics

Citation
Sergey M. Novikov, Jonas Beermann, Thomas Søndergaard, Alexandra E. Boltasseva, and Sergey I. Bozhevolnyi, "Two-photon imaging of field enhancement by groups of gold nanostrip antennas," J. Opt. Soc. Am. B 26, 2199-2203 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-11-2199

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