"Thermal tuning of mid-infrared plasmonic antenna arrays using a phase " by Mikhail A. Kats, Romain Blanchard et al.
 

Document Type

Article

Department/Program

Physics

Journal Title

Optics Letters

Pub Date

1-2013

Volume

38

Issue

3

First Page

368

Abstract

We demonstrate that the resonances of infrared plasmonic antennas can be tuned or switched on/off by taking advantage of the thermally driven insulator-to-metal phase transition in vanadium dioxide (VO2). Y-shaped antennas were fabricated on a 180 nm film of VO2 deposited on a sapphire substrate, and their resonances were shown to depend on the temperature of the VO2 film in proximity of its phase transition, in good agreement with full-wave simulations. We achieved tunability of the resonance wavelength of approximately 10% (>1 μm at λ ∼ 10 μm).

DOI

https://doi.org/10.1364/OL.38.000368

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