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Polarization-dependent phase transition temperature in plasmonic thin films

Polarization-dependent phase transition temperature in plasmonic thin films
Polarization-dependent phase transition temperature in plasmonic thin films
Nano-engineering the effective, macroscopic properties of composite materials is becoming increasingly important in material sciences and device development. Here, we report on using embedded plasmonic nanorods to modify the effective, as opposed to the intrinsic, phase transition temperature of vanadium oxide, a phase change material vital for infrared imaging and thermochromics. The nanorods function as controllable, nano-sized thermal sources through the excitation and dissipation of surface plasmons. The polarization dependence in the excitation efficiency modifies the effective phase transition temperature by up to 4.2 °C under broadband illumination of 5.0 W. This work constitutes a proof-of-principle demonstration of tunable and reversible plasmonic modulation of the phase transition temperature in a phase change material. It also represents a new strategy of thermo-plasmonic engineering at the nanoscale.
0021-4922
Kubo, Wakana
453b4e5c-4481-48b5-8f84-ca30ca2224e4
Ogata, Yosuke
c97bdf2e-e4d6-4ffa-b688-97962f15dc8b
Frame, James
828e40bf-f524-4d8e-a915-efb7a515048b
Tanaka, Takuo
cdfd9f22-1f7e-46a4-b5c5-b4b2ff4d25a7
Fang, Xu
96b4b212-496b-4d68-82a4-06df70f94a86
Kubo, Wakana
453b4e5c-4481-48b5-8f84-ca30ca2224e4
Ogata, Yosuke
c97bdf2e-e4d6-4ffa-b688-97962f15dc8b
Frame, James
828e40bf-f524-4d8e-a915-efb7a515048b
Tanaka, Takuo
cdfd9f22-1f7e-46a4-b5c5-b4b2ff4d25a7
Fang, Xu
96b4b212-496b-4d68-82a4-06df70f94a86

Kubo, Wakana, Ogata, Yosuke, Frame, James, Tanaka, Takuo and Fang, Xu (2020) Polarization-dependent phase transition temperature in plasmonic thin films. Japanese Journal of Applied Physics, 59, [052001]. (doi:10.35848/1347-4065/ab8433).

Record type: Article

Abstract

Nano-engineering the effective, macroscopic properties of composite materials is becoming increasingly important in material sciences and device development. Here, we report on using embedded plasmonic nanorods to modify the effective, as opposed to the intrinsic, phase transition temperature of vanadium oxide, a phase change material vital for infrared imaging and thermochromics. The nanorods function as controllable, nano-sized thermal sources through the excitation and dissipation of surface plasmons. The polarization dependence in the excitation efficiency modifies the effective phase transition temperature by up to 4.2 °C under broadband illumination of 5.0 W. This work constitutes a proof-of-principle demonstration of tunable and reversible plasmonic modulation of the phase transition temperature in a phase change material. It also represents a new strategy of thermo-plasmonic engineering at the nanoscale.

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Polarization-dependent phase transition temperature in plasmonic thin films_XF - Accepted Manuscript
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Accepted/In Press date: 26 March 2020
Published date: 16 April 2020

Identifiers

Local EPrints ID: 443845
URI: http://eprints.soton.ac.uk/id/eprint/443845
ISSN: 0021-4922
PURE UUID: cd11647c-29a6-461a-8af1-8ffc01b60c2f
ORCID for Xu Fang: ORCID iD orcid.org/0000-0003-1735-2654

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Date deposited: 14 Sep 2020 16:36
Last modified: 07 Oct 2020 02:01

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