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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 16 — Jul. 30, 2012
  • pp: 18085–18090

Saturated excitation of fluorescence to quantify excitation enhancement in aperture antennas

Heykel Aouani, Richard Hostein, Oussama Mahboub, Eloïse Devaux, Hervé Rigneault, Thomas W. Ebbesen, and Jérôme Wenger  »View Author Affiliations

Optics Express, Vol. 20, Issue 16, pp. 18085-18090 (2012)

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Fluorescence spectroscopy is widely used to probe the electromagnetic intensity amplification on optical antennas, yet measuring the excitation intensity amplification is a challenge, as the detected fluorescence signal is an intricate combination of excitation and emission. Here, we describe a novel approach to quantify the electromagnetic amplification in aperture antennas by taking advantage of the intrinsic non linear properties of the fluorescence process. Experimental measurements of the fundamental f and second harmonic 2f amplitudes of the fluorescence signal upon excitation modulation are used to quantify the electromagnetic intensity amplification with plasmonic aperture antennas.

© 2012 OSA

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(240.0240) Optics at surfaces : Optics at surfaces
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

ToC Category:
Optics at Surfaces

Original Manuscript: May 16, 2012
Revised Manuscript: June 27, 2012
Manuscript Accepted: June 29, 2012
Published: July 23, 2012

Heykel Aouani, Richard Hostein, Oussama Mahboub, Eloïse Devaux, Hervé Rigneault, Thomas W. Ebbesen, and Jérôme Wenger, "Saturated excitation of fluorescence to quantify excitation enhancement in aperture antennas," Opt. Express 20, 18085-18090 (2012)

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