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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 4 — Feb. 15, 2010
  • pp: 538–540

Multiple-wavelength plasmonic nanoantennas

Svetlana V. Boriskina and Luca Dal Negro  »View Author Affiliations

Optics Letters, Vol. 35, Issue 4, pp. 538-540 (2010)

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We propose a type of photonic-plasmonic antennas capable of focusing light into subwavelength focal point(s) at several wavelengths, which are formed by embedding conventional dimer gap or bow-tie nanoantennas into multiple-periodic gratings. Fano-type coupling between localized surface plasmon resonances of dimer antennas and photonic modes in the gratings adds new functionalities, including multiple-wavelength operation and controllable enhancement of the field intensity in the focal point. Multiple-wavelength operation of nanoantennas provides tremendous opportunities for broadband single-molecule fluorescence and Raman sensing, emission enhancement, and near-field imaging.

© 2010 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(290.4020) Scattering : Mie theory
(250.5403) Optoelectronics : Plasmonics

ToC Category:

Original Manuscript: November 2, 2009
Revised Manuscript: December 21, 2009
Manuscript Accepted: January 7, 2010
Published: February 11, 2010

Svetlana V. Boriskina and Luca Dal Negro, "Multiple-wavelength plasmonic nanoantennas," Opt. Lett. 35, 538-540 (2010)

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