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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 11 — Jun. 1, 2006
  • pp: 1726–1728

Evanescent Bessel beam generation via surface plasmon resonance excitation by a radially polarized beam

Qiwen Zhan  »View Author Affiliations


Optics Letters, Vol. 31, Issue 11, pp. 1726-1728 (2006)
http://dx.doi.org/10.1364/OL.31.001726


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Abstract

A simple setup for generating evanescent Bessel beams is proposed. When a radially polarized beam is strongly focused onto a dielectric–metal interface, the entire beam is p-polarized with respect to the dielectric–metal interface, enabling excitation of surface plasmons from all directions. The angular selectivity of surface plasmon excitation mimics the function of an axicon, leading to an evanescent nondiffracting Bessel beam. The created evanescent Bessel beam may be used as a virtual probe for near-field optical imaging and sensing applications.

© 2006 Optical Society of America

OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(170.5810) Medical optics and biotechnology : Scanning microscopy
(240.6680) Optics at surfaces : Surface plasmons
(260.5430) Physical optics : Polarization

ToC Category:
Physical Optics

History
Original Manuscript: February 22, 2006
Manuscript Accepted: March 16, 2006

Virtual Issues
Vol. 1, Iss. 7 Virtual Journal for Biomedical Optics

Citation
Qiwen Zhan, "Evanescent Bessel beam generation via surface plasmon resonance excitation by a radially polarized beam," Opt. Lett. 31, 1726-1728 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-11-1726

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