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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 12 — Jun. 6, 2011
  • pp: 11280–11289

A nanoplasmonic probe for near-field imaging

J. A. J. Backs, S. Sederberg, and A. Y. Elezzabi  »View Author Affiliations


Optics Express, Vol. 19, Issue 12, pp. 11280-11289 (2011)
http://dx.doi.org/10.1364/OE.19.011280


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Abstract

We demonstrate a nanoplasmonic probe that incorporates a subwavelength aperture coupled to a fine probing tip. This probe is used in a hybrid near-field scanning optical microscope and atomic force microscope system that can simultaneously map the optical near-field and the topography of nanostructures. By spatially isolating but optically coupling the aperture and the localizing point, we obtained near-field images at a resolution of 45 nm, corresponding to λ/14. This nanoplasmonic probe design overcomes the resolution challenges of conventional apertured near-field optical probes and can provide substantially higher resolution than demonstrated in this work.

© 2011 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics
(180.4243) Microscopy : Near-field microscopy
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Microscopy

History
Original Manuscript: April 5, 2011
Revised Manuscript: May 13, 2011
Manuscript Accepted: May 22, 2011
Published: May 25, 2011

Virtual Issues
Vol. 6, Iss. 7 Virtual Journal for Biomedical Optics

Citation
J. A. J. Backs, S. Sederberg, and A. Y. Elezzabi, "A nanoplasmonic probe for near-field imaging," Opt. Express 19, 11280-11289 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-12-11280


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