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arXiv · 1308.1593

Coupling of optical far-fields into aperture-less plasmonic nanofibre tips

D. Auwärter·C. Zimmermann·S. Slama
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Abstract

This paper reports on the excitation of surface plasmons on gold-coated nanofibre tips by side-illumination with a laser beam and the coupling of the surface plasmons to the optical fiber. The measurements show a strong dependence of the coupling efficiency on the incidence angle with a maximum coupling efficiency on the order of few percent. Moreover, the fibre tip was used as scanning probe device for measuring the beam waist of a focussed laser beam. This work is motivated by the goal to use such plasmonic nanofibre tips in quantum optics experiments with cold atoms.

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D. Auwärter, C. Zimmermann, S. Slama. 2013-08-07. Coupling of optical far-fields into aperture-less plasmonic nanofibre tips. https://doi.org/10.1103/physreva.88.063830

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