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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 26 — Dec. 26, 2005
  • pp: 10688–10696

High-resolution mapping of the optical near-field components at a triangular nano-aperture

D. Molenda, G.Colas des Francs, U.C. Fischer, N. Rau, and A. Naber  »View Author Affiliations


Optics Express, Vol. 13, Issue 26, pp. 10688-10696 (2005)
http://dx.doi.org/10.1364/OPEX.13.010688


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Abstract

A triangular nano-aperture in an aluminum film was used as a probe in a scanning near-field optical microscope (SNOM) to image single fluorescent molecules with an optical resolution down to 30 nm. The differently oriented molecules were employed as point detectors to map the vectorial components of the electric field distribution at the illuminated triangular aperture. The good agreement of the experimental results with numerical simulations enabled us to determine both the field map at a triangular aperture and the exact orientations of the probing molecules.

© 2005 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(050.1960) Diffraction and gratings : Diffraction theory
(180.2520) Microscopy : Fluorescence microscopy
(180.5810) Microscopy : Scanning microscopy

ToC Category:
Research Papers

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

Citation
D. Molenda, G. Colas des Francs, U. C. Fischer, N. Rau, and A. Naber, "High-resolution mapping of the optical near-field components at a triangular nano-aperture," Opt. Express 13, 10688-10696 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-26-10688


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References

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