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Proceedings Paper

Far-field characterization of ordered arrays of subwavelength apertures with adjustable dimensions
Author(s): Arnaud Chovin; Patrick Garrigue; Sebastien Sallard; Inka Manek-Hoenninger; Neso Sojic
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Paper Abstract

Ordered arrays of nanometer-sized optical probes were developed on the distal face of coherent optical fiber bundles. The fabrication steps derived from SNOM probes methodology and allowed to produce high-density microarrays of nanoapertures with adjustable dimensions. The angular profile of the far-field intensity transmitted through the nanostructured arrays shows a diffracting behavior which is a function of the nanoaperture sizes. Nearfield optical behavior was thus established in an array format where each element is equivalent to a single nanoaperture. It means that each subwavelength aperture of the array is optically independent in the far-field regime. This analysis demonstrates its potential use as a near-field optical array. Since the initial architecture of the bundle is retained, the array format allows imaging a sample concomitantly at both nanometric and micrometric scales. Therefore such an array plays a bridging role between these 2 fundamental scales.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623864
Show Author Affiliations
Arnaud Chovin, Univ. Bordeaux 1, ENSCPB (France)
Patrick Garrigue, Univ. Bordeaux 1, ENSCPB (France)
Sebastien Sallard, Univ. Bordeaux 1, ENSCPB (France)
Inka Manek-Hoenninger, CLIA, Univ. Bordeaux 1 (France)
Neso Sojic, Univ. Bordeaux 1, ENSCPB (France)

Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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