Giant magnetic modulation of a planar, hybrid metamolecule resonance
Coupling magnetic elements to metamaterial structures creates hybrid metamolecules with new opportunities. Here we report on the magnetic control of a metamolecule resonance, by utilizing the interaction between a single split ring resonator (SRR) and a magnetic thin film of permalloy. To suppress e...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2014-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/16/6/063002 |
| _version_ | 1797751358388961280 |
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| author | Simon A Gregory Gavin B G Stenning Graham J Bowden Nikolay I Zheludev Peter A J de Groot |
| author_facet | Simon A Gregory Gavin B G Stenning Graham J Bowden Nikolay I Zheludev Peter A J de Groot |
| author_sort | Simon A Gregory |
| collection | DOAJ |
| description | Coupling magnetic elements to metamaterial structures creates hybrid metamolecules with new opportunities. Here we report on the magnetic control of a metamolecule resonance, by utilizing the interaction between a single split ring resonator (SRR) and a magnetic thin film of permalloy. To suppress eddy current shielding, the permalloy films are patterned into arrays of 30–500 μ m diameter discs. Strong hybridized resonances were observed at the anticrossing between the split ring resonance and the ferromagnetic resonance (FMR) of the permalloy. In particular, it is possible to achieve 40 dB modulation of the electric (symmetric) mode of the SRR on sweeping the applied magnetic field through the SRR/FMR anticrossing. The results open the way to the design of planar metamaterials, with potential applications in nonlinear metamaterials, tunable metamaterials and spintronics. |
| first_indexed | 2024-03-12T16:48:18Z |
| format | Article |
| id | doaj.art-2529c67285a54f419ad83d2fa1945290 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:48:18Z |
| publishDate | 2014-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-2529c67285a54f419ad83d2fa19452902023-08-08T11:27:43ZengIOP PublishingNew Journal of Physics1367-26302014-01-0116606300210.1088/1367-2630/16/6/063002Giant magnetic modulation of a planar, hybrid metamolecule resonanceSimon A Gregory0Gavin B G Stenning1Graham J Bowden2Nikolay I Zheludev3Peter A J de Groot4Physics & Astronomy and Centre for Photonic Metamaterials, University of Southampton , Southampton SO17 1BJ, UKPhysics & Astronomy and Centre for Photonic Metamaterials, University of Southampton , Southampton SO17 1BJ, UKPhysics & Astronomy and Centre for Photonic Metamaterials, University of Southampton , Southampton SO17 1BJ, UKOptoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton , Southampton SO17 1BJ, UK; Centre for Disruptive Photonic Technologies, NTU, Singapore 637371, SingaporePhysics & Astronomy and Centre for Photonic Metamaterials, University of Southampton , Southampton SO17 1BJ, UKCoupling magnetic elements to metamaterial structures creates hybrid metamolecules with new opportunities. Here we report on the magnetic control of a metamolecule resonance, by utilizing the interaction between a single split ring resonator (SRR) and a magnetic thin film of permalloy. To suppress eddy current shielding, the permalloy films are patterned into arrays of 30–500 μ m diameter discs. Strong hybridized resonances were observed at the anticrossing between the split ring resonance and the ferromagnetic resonance (FMR) of the permalloy. In particular, it is possible to achieve 40 dB modulation of the electric (symmetric) mode of the SRR on sweeping the applied magnetic field through the SRR/FMR anticrossing. The results open the way to the design of planar metamaterials, with potential applications in nonlinear metamaterials, tunable metamaterials and spintronics.https://doi.org/10.1088/1367-2630/16/6/063002metamaterialspermalloyhybrid metamaterialscoplanar waveguide84.40.Az (Waveguides, transmission lines, striplines)78.67.Pt (Multilayers; superlattices, photonic structures, metamaterials) |
| spellingShingle | Simon A Gregory Gavin B G Stenning Graham J Bowden Nikolay I Zheludev Peter A J de Groot Giant magnetic modulation of a planar, hybrid metamolecule resonance New Journal of Physics metamaterials permalloy hybrid metamaterials coplanar waveguide 84.40.Az (Waveguides, transmission lines, striplines) 78.67.Pt (Multilayers; superlattices, photonic structures, metamaterials) |
| title | Giant magnetic modulation of a planar, hybrid metamolecule resonance |
| title_full | Giant magnetic modulation of a planar, hybrid metamolecule resonance |
| title_fullStr | Giant magnetic modulation of a planar, hybrid metamolecule resonance |
| title_full_unstemmed | Giant magnetic modulation of a planar, hybrid metamolecule resonance |
| title_short | Giant magnetic modulation of a planar, hybrid metamolecule resonance |
| title_sort | giant magnetic modulation of a planar hybrid metamolecule resonance |
| topic | metamaterials permalloy hybrid metamaterials coplanar waveguide 84.40.Az (Waveguides, transmission lines, striplines) 78.67.Pt (Multilayers; superlattices, photonic structures, metamaterials) |
| url | https://doi.org/10.1088/1367-2630/16/6/063002 |
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