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Tunable optical metasurfaces for continuous beam steering and dynamic focusing

Tunable optical metasurfaces for continuous beam steering and dynamic focusing
Tunable optical metasurfaces for continuous beam steering and dynamic focusing
In this invited talk, we present our recent results on a coherently controlled, beam-steering metasurface. The metasurface consists an array of silicon nanopillars on top of a glass substrate. The optical response of individual pillars can be tuned by controlling the relative phase and strength of two incident light beams. The collective response of all the pillars results in a tunable phase gradient across the metasurface, which dictates the direction of the output laser beam. Based on numerical simulation, the direction is tuned within a range of approximately 10 degrees.
Okayama University
Fang, Xu
96b4b212-496b-4d68-82a4-06df70f94a86
Fang, Xu
96b4b212-496b-4d68-82a4-06df70f94a86

Fang, Xu (2019) Tunable optical metasurfaces for continuous beam steering and dynamic focusing. In OptoX-NANO 2019 Conference. Okayama University. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

In this invited talk, we present our recent results on a coherently controlled, beam-steering metasurface. The metasurface consists an array of silicon nanopillars on top of a glass substrate. The optical response of individual pillars can be tuned by controlling the relative phase and strength of two incident light beams. The collective response of all the pillars results in a tunable phase gradient across the metasurface, which dictates the direction of the output laser beam. Based on numerical simulation, the direction is tuned within a range of approximately 10 degrees.

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Tunable optical metasurfaces for continuous beam steering and dynamic focusing - Accepted Manuscript
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Published date: 2 December 2019
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Identifiers

Local EPrints ID: 437390
URI: http://eprints.soton.ac.uk/id/eprint/437390
PURE UUID: 0365ec0b-49d3-4da8-b4d3-8bb123cec44e
ORCID for Xu Fang: ORCID iD orcid.org/0000-0003-1735-2654

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Date deposited: 29 Jan 2020 17:32
Last modified: 30 Jun 2020 04:01

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