The University of Southampton
University of Southampton Institutional Repository

Giant nonlinearity in a superconducting sub-terahertz metamaterial

Giant nonlinearity in a superconducting sub-terahertz metamaterial
Giant nonlinearity in a superconducting sub-terahertz metamaterial
We report a superconducting sub-THz metamaterial operating in a CW-regime, which exhibits a record-breaking resonant third-order nonlinearity with effective n2 ~ 10cm2/W. The nonlinear response is caused by the radiation-induced resistive heating, suppressing the superconductivity in the nano-scale constrictions of the structure's meta-molecules. The nonlinearity has a relaxation time of 25µs and leads to a substantial change of the amplitude and phase of the transmitted radiation at intensities of only 500µW/cm2.
0003-6951
1-4
Savinov, V.
147c7954-4636-4438-a305-cd78539f7c0a
Delfanazari, K.
e538911f-2398-4d3f-952f-ff2d908213b0
Fedotov, V.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, N.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Savinov, V.
147c7954-4636-4438-a305-cd78539f7c0a
Delfanazari, K.
e538911f-2398-4d3f-952f-ff2d908213b0
Fedotov, V.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Zheludev, N.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Savinov, V., Delfanazari, K., Fedotov, V. and Zheludev, N. (2016) Giant nonlinearity in a superconducting sub-terahertz metamaterial. Applied Physics Letters, 108 (101107), 1-4. (doi:10.1063/1.4943649).

Record type: Article

Abstract

We report a superconducting sub-THz metamaterial operating in a CW-regime, which exhibits a record-breaking resonant third-order nonlinearity with effective n2 ~ 10cm2/W. The nonlinear response is caused by the radiation-induced resistive heating, suppressing the superconductivity in the nano-scale constrictions of the structure's meta-molecules. The nonlinearity has a relaxation time of 25µs and leads to a substantial change of the amplitude and phase of the transmitted radiation at intensities of only 500µW/cm2.

Text
__soton.ac.uk_ude_personalfiles_users_mw1d13_mydesktop_eprint_Savinov new.pdf - Version of Record
Available under License Creative Commons Attribution.
Download (1MB)

More information

Submitted date: 1 December 2015
Accepted/In Press date: 28 February 2016
Published date: 10 March 2016
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 390345
URI: https://eprints.soton.ac.uk/id/eprint/390345
ISSN: 0003-6951
PURE UUID: 6754f661-a1bc-4144-9209-783477160682
ORCID for V. Savinov: ORCID iD orcid.org/0000-0001-7203-7222
ORCID for N. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 24 Mar 2016 11:56
Last modified: 10 Dec 2019 06:36

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×