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∼10 cm2/W. The nonlinear response is caused by the radiation-induced resistive heating, suppressing the superconductivity in the nano-scale c...
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sg-ntu-dr.10356-815002023-02-28T19:29:40Z Giant nonlinearity in a superconducting sub-terahertz metamaterial Savinov, V. Delfanazari, K. Fedotov, V. A. Zheludev, Nikolay I. School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies (CDPT) Metamaterials Niobium We report a superconducting sub-THz metamaterial operating in a CW-regime, which exhibits a record-breaking resonant third-order nonlinearity with effective n2∼10 cm2/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 25 μs and leads to a substantial change of the amplitude and phase of the transmitted radiation at intensities of only 500 μW/cm. MOE (Min. of Education, S’pore) Published version 2016-06-30T07:38:51Z 2019-12-06T14:32:23Z 2016-06-30T07:38:51Z 2019-12-06T14:32:23Z 2016 Journal Article Savinov, V., Delfanazari, K., Fedotov, V. A., & Zheludev, N. I. (2016). Giant nonlinearity in a superconducting sub-terahertz metamaterial. Applied Physics Letters, 108(10), 101107-. 0003-6951 https://hdl.handle.net/10356/81500 http://hdl.handle.net/10220/40853 10.1063/1.4943649 en Applied Physics Letters © 2016 AIP Publishing LLC. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC. The published version is available at: [http://dx.doi.org/10.1063/1.4943649]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 4 p. application/pdf |
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Metamaterials Niobium Savinov, V. Delfanazari, K. Fedotov, V. A. Zheludev, Nikolay I. Giant nonlinearity in a superconducting sub-terahertz metamaterial |
| description |
We report a superconducting sub-THz metamaterial operating in a CW-regime, which exhibits a record-breaking resonant third-order nonlinearity with effective n2∼10 cm2/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 25 μs and leads to a substantial change of the amplitude and phase of the transmitted radiation at intensities of only 500 μW/cm. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Savinov, V. Delfanazari, K. Fedotov, V. A. Zheludev, Nikolay I. |
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Article |
| author |
Savinov, V. Delfanazari, K. Fedotov, V. A. Zheludev, Nikolay I. |
| author_sort |
Savinov, V. |
| title |
Giant nonlinearity in a superconducting sub-terahertz metamaterial |
| title_short |
Giant nonlinearity in a superconducting sub-terahertz metamaterial |
| title_full |
Giant nonlinearity in a superconducting sub-terahertz metamaterial |
| title_fullStr |
Giant nonlinearity in a superconducting sub-terahertz metamaterial |
| title_full_unstemmed |
Giant nonlinearity in a superconducting sub-terahertz metamaterial |
| title_sort |
giant nonlinearity in a superconducting sub-terahertz metamaterial |
| publishDate |
2016 |
| url |
https://hdl.handle.net/10356/81500 http://hdl.handle.net/10220/40853 |
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1759855317512880128 |