Far-field characterization of ordered arrays of subwavelength apertures with adjustable dimensions

Arnaud Chovin; Patrick Garrigue; Sebastien Sallard; Inka Manek-Hoenninger; Neso Sojic

doi:10.1117/12.623864

23 May 2005 Far-field characterization of ordered arrays of subwavelength apertures with adjustable dimensions

Arnaud Chovin, Patrick Garrigue, Sebastien Sallard, Inka Manek-Hoenninger, Neso Sojic

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623864
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

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.

Citation Download Citation

Arnaud Chovin, Patrick Garrigue, Sebastien Sallard, Inka Manek-Hoenninger, and Neso Sojic "Far-field characterization of ordered arrays of subwavelength apertures with adjustable dimensions", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623864

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