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Plasmonic vanadium dioxide microbolometers with wavelength and polarisation sensitivity

Plasmonic vanadium dioxide microbolometers with wavelength and polarisation sensitivity
Plasmonic vanadium dioxide microbolometers with wavelength and polarisation sensitivity

Uncooled microbolometric photodetection is a key technology for low cost, reliable and lightweight infrared sensing but suffers in performance compared to cooled photodetectors. Introducing new microbolometer functionality such as wavelength and polarisation sensitivity will improve current device performance and encourage new market opportunities. One method is to introduce metallic nanostructures, which are widely known to exhibit strong localised surface plasmon resonances (LSPR) that are sensitive to incident wavelength and polarisation. This work presents the integration of plasmonic silver nanorods into the material vanadium dioxide VO2. An experimental correlation between suppression of VO2 resistivity and dips in transmission spectra was observed. Subsequent optical and thermal simulations of VO2 films, both on sapphire Al2O3 and suspended in air, demonstrate how LSPR-driven electric field enhancement leads to localised heating around the nanorods and subsequent temperature distribution on the nanoscale. This work opens the path to a broad family of photodetection functionalities for vanadium dioxide-based microbolometers.

Localised surface plasmon resonance, Microbolometers, Nanorods, Plasmonic heating, Polarimetric sensing, Thermoplasmonics, Vanadium dioxide, Vanadium oxide
SPIE
Frame, James D.
828e40bf-f524-4d8e-a915-efb7a515048b
Green, Nicolas G.
d9b47269-c426-41fd-a41d-5f4579faa581
Kubo, Wakana
453b4e5c-4481-48b5-8f84-ca30ca2224e4
Fang, Xu
96b4b212-496b-4d68-82a4-06df70f94a86
Frame, James D.
828e40bf-f524-4d8e-a915-efb7a515048b
Green, Nicolas G.
d9b47269-c426-41fd-a41d-5f4579faa581
Kubo, Wakana
453b4e5c-4481-48b5-8f84-ca30ca2224e4
Fang, Xu
96b4b212-496b-4d68-82a4-06df70f94a86

Frame, James D., Green, Nicolas G., Kubo, Wakana and Fang, Xu (2018) Plasmonic vanadium dioxide microbolometers with wavelength and polarisation sensitivity. In Plasmonics: Design, Materials Fabrication, Characterization, and Applications XVI. vol. 10722, SPIE.. (doi:10.1117/12.2320554).

Record type: Conference or Workshop Item (Paper)

Abstract

Uncooled microbolometric photodetection is a key technology for low cost, reliable and lightweight infrared sensing but suffers in performance compared to cooled photodetectors. Introducing new microbolometer functionality such as wavelength and polarisation sensitivity will improve current device performance and encourage new market opportunities. One method is to introduce metallic nanostructures, which are widely known to exhibit strong localised surface plasmon resonances (LSPR) that are sensitive to incident wavelength and polarisation. This work presents the integration of plasmonic silver nanorods into the material vanadium dioxide VO2. An experimental correlation between suppression of VO2 resistivity and dips in transmission spectra was observed. Subsequent optical and thermal simulations of VO2 films, both on sapphire Al2O3 and suspended in air, demonstrate how LSPR-driven electric field enhancement leads to localised heating around the nanorods and subsequent temperature distribution on the nanoscale. This work opens the path to a broad family of photodetection functionalities for vanadium dioxide-based microbolometers.

Full text not available from this repository.

More information

Published date: 19 September 2018
Venue - Dates: Plasmonics: Design, Materials Fabrication, Characterization, and Applications XVI 2018, San Diego, United States, 2018-08-19 - 2018-08-23
Keywords: Localised surface plasmon resonance, Microbolometers, Nanorods, Plasmonic heating, Polarimetric sensing, Thermoplasmonics, Vanadium dioxide, Vanadium oxide

Identifiers

Local EPrints ID: 426994
URI: http://eprints.soton.ac.uk/id/eprint/426994
PURE UUID: 83e0590d-9746-4965-867c-9aa83eff1298
ORCID for Nicolas G. Green: ORCID iD orcid.org/0000-0001-9230-4455
ORCID for Xu Fang: ORCID iD orcid.org/0000-0003-1735-2654

Catalogue record

Date deposited: 20 Dec 2018 17:30
Last modified: 17 Dec 2019 01:47

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Contributors

Author: James D. Frame
Author: Nicolas G. Green ORCID iD
Author: Wakana Kubo
Author: Xu Fang ORCID iD

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