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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 27, Iss. 3 — Mar. 1, 2010
  • pp: 450–457

Modeling of the scanning surface plasmon microscope

Juan Elezgaray, Thibault Roland, Lotfi Berguiga, and Françoise Argoul  »View Author Affiliations


JOSA A, Vol. 27, Issue 3, pp. 450-457 (2010)
http://dx.doi.org/10.1364/JOSAA.27.000450


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Abstract

We propose a family of exact solutions of Maxwell's equations to model some aspects of the imaging process involved in the scanning surface plasmon microscope (SSPM). More precisely, we compute the SSPM response of a spherical nanoparticle immobilized close to a thin gold layer and illuminated by a tightly focused spot. We discuss the influence of parameters such as the defocus and the width of the gold layer on the image contrast. We show that this microscopy combines a subwavelength spatial resolution together with high sensitivity to small changes in dielectric properties on the nanoparticle.

© 2010 Optical Society of America

OCIS Codes
(180.3170) Microscopy : Interference microscopy
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

History
Original Manuscript: August 31, 2009
Revised Manuscript: December 14, 2009
Manuscript Accepted: January 7, 2010
Published: February 23, 2010

Virtual Issues
Vol. 5, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Juan Elezgaray, Thibault Roland, Lotfi Berguiga, and Françoise Argoul, "Modeling of the scanning surface plasmon microscope," J. Opt. Soc. Am. A 27, 450-457 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-3-450

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