Journal
AIP ADVANCES
Volume 2, Issue 4, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4770319
Keywords
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Funding
- State Key Program for Basic Research of China [2012CB921501]
- National Natural Science Foundation [11021403, 11174137]
- NCET [09-0453]
- Specialized Research Fund for the Doctoral Program of Higher Education [20110161120010]
- National Natural Science Foundation of China [11104198]
- Priority Academic Program Development (PAPD)
- Fundamental Research Funds for the Central Universities [1115020403]
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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. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.4770319]
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