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Article Dans Une Revue Applied Physics Letters Année : 2014

Cylindrical vector beams of light from an electrically excited plasmonic lens

Résumé

The production of cylindrical vector beams from a low-energy, electric, microscale light source is demonstrated both experimentally and theoretically. This is achieved by combining a “plasmonic lens” with the ability to locally and electrically excite propagating surface plasmons on gold films. The plasmonic lens consists of concentric circular subwavelength slits that are etched in a thick gold film. The local excitation arises from the inelastic tunneling of electrons from the tip of a scanning tunneling microscope. We report on the emission of radially polarized beams with an angular divergence of less than ±4°.
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Dates et versions

hal-01369116 , version 1 (31-01-2017)

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Shuiyan Cao, Eric Le Moal, Elizabeth Boer-Duchemin, Gérald Dujardin, Aurélien Drezet, et al.. Cylindrical vector beams of light from an electrically excited plasmonic lens. Applied Physics Letters, 2014, 105 (11), pp.111103. ⟨10.1063/1.4895769⟩. ⟨hal-01369116⟩
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