Generation of diffraction-free plasmonic beams with one-dimensional Bessel profiles

César Eduardo García Ortíz, Victor Coello, Zhanghua Han, Sergey I. Bozhevolnyi

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Abstrakt

We demonstrate experimentally generation of diffraction-free plasmonic beams with zeroth- and first-order Bessel intensity profiles using axicon-like structures fabricated on gold film surfaces and designed to operate at a wavelength of 700nm. The central beam features a very low divergence (∼8π mrad) for a narrow waist of the order of one wavelength and the ability to self reconstruct, which are the main signatures of diffraction-free beams
OriginalsprogEngelsk
TidsskriftOptics Letters
Vol/bind38
Udgave nummer6
Sider (fra-til)905-907
ISSN0146-9592
DOI
StatusUdgivet - 2013

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