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Article Dans Une Revue Optics Express Année : 2014

Fiber-integrated optical nano-tweezer based on a bowtie-aperture nano-antenna at the apex of a SNOM tip

Résumé

We propose a new concept of fiber-integrated optical nano-tweezer on the basis of a single bowtie-aperture nano-antenna (BNA) fabricated at the apex of a metal-coated SNOM tip. We demonstrate 3D optical trapping of 0.5 micrometer latex beads with input power which does not exceed 1 mW. Optical forces induced by the BNA on tip are then analyzed numerically. They are found to be 103 times larger than the optical forces of a circular aperture of the same area. Such a fiber nanostructure provides a new path for manipulating nano-objects in a compact, flexible and versatile architecture and should thus open promising perspectives in physical, chemical and biomedical domains.

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Chimie
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hal-01275266 , version 1 (28-12-2023)

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A. El Eter, N.M. Hameed, F.I. Baida, R. Salut, C. Filiatre, et al.. Fiber-integrated optical nano-tweezer based on a bowtie-aperture nano-antenna at the apex of a SNOM tip. Optics Express, 2014, 22 (8), pp.10072-10080. ⟨10.1364/OE.22.010072⟩. ⟨hal-01275266⟩
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