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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 16 — Aug. 15, 2012
  • pp: 3396–3398

Plasmon interferometers for high-throughput sensing

Ozlem Yavas and Coskun Kocabas  »View Author Affiliations

Optics Letters, Vol. 37, Issue 16, pp. 3396-3398 (2012)

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In this letter, we demonstrate a refractive index sensor based on a subwavelength plasmon interferometer. Illumination of an atilt subwavelength slit-grove pair on a metal surface with monochromatic light generates high-contrast interference fringes of the transmitted light. Detection of the refractive index of the dielectric medium on the metal surface is based on examining the relative position of the interference fringes. Integration of the plasmon interferometer with a microfluidic channel provides a sensitive, high-throughput sensor with small detection volume.

© 2012 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(280.3420) Remote sensing and sensors : Laser sensors
(280.1415) Remote sensing and sensors : Biological sensing and sensors

ToC Category:
Optics at Surfaces

Original Manuscript: March 16, 2012
Revised Manuscript: May 26, 2012
Manuscript Accepted: July 6, 2012
Published: August 8, 2012

Virtual Issues
Vol. 7, Iss. 10 Virtual Journal for Biomedical Optics

Ozlem Yavas and Coskun Kocabas, "Plasmon interferometers for high-throughput sensing," Opt. Lett. 37, 3396-3398 (2012)

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