Effect of gap width on enhanced magnetic optical fields in metallic split ring resonators | Zendy

Qi Shen | Zendy; Bo Hou | Zendy; Zhuo Chen | Zendy; Zhenlin Wang | Zendy

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Effect of gap width on enhanced magnetic optical fields in metallic split ring resonators

Author(s) -

Qi Shen,

Bo Hou,

Zhuo Chen,

Zhenlin Wang

Publication year - 2012

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4770319

Subject(s) - split ring resonator , magnetic field , resonator , wavelength , condensed matter physics , resonance (particle physics) , metamaterial , materials science , metal , optoelectronics , optics , physics , atomic physics , quantum mechanics , metallurgy

We analyze the U-shaped metallic split-ring resonators (SRRs) aimed at creating highly confined and enhanced magnetic field in the near-infrared frequency range. At the magnetic resonance, the induced circulating current of the SRRs could lead to a strong enhancement of the surrounding magnetic field. Such a magnetic field enhancement is found to be dominated by the gap width between two SRR arms. By decreasing the gap width to 10 nm, the SRR is predicted to have a 3790-fold enhancement of the magnetic field at the resonance wavelength of 1340 nm

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