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Optical fiber meta-tips.

ABSTRACT: We report on the first demonstration of a proof-of-principle optical fiber 'meta-tip', which integrates a phase-gradient plasmonic metasurface on the fiber tip. For illustration and validation purposes, we present numerical and experimental results pertaining to various prototypes implementing generalized forms of the Snell's transmission/reflection laws at near-infrared wavelengths. In particular, we demonstrate several examples of beam steering and coupling with surface waves, in fairly good agreement with theory. Our results constitute a first step toward the integration of unprecedented (metasurface-enabled) light-manipulation capabilities in optical-fiber technology. By further enriching the emergent 'lab-on-fiber' framework, this may pave the way for the widespread diffusion of optical metasurfaces in real-world applications to communications, signal processing, imaging and sensing.

SUBMITTER: Principe M

PROVIDER: S-EPMC6062173 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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Optical fiber meta-tips.

Principe Maria M Consales Marco M Micco Alberto A Crescitelli Alessio A Castaldi Giuseppe G Esposito Emanuela E La Ferrara Vera V Cutolo Antonello A Galdi Vincenzo V Cusano Andrea A

Light, science & applications 20170310 3

We report on the first demonstration of a proof-of-principle optical fiber 'meta-tip', which integrates a phase-gradient plasmonic metasurface on the fiber tip. For illustration and validation purposes, we present numerical and experimental results pertaining to various prototypes implementing generalized forms of the Snell's transmission/reflection laws at near-infrared wavelengths. In particular, we demonstrate several examples of beam steering and coupling with surface waves, in fairly good a ...[more]

PMID: 30167235

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