Magnetic dipole moments in single and coupled split-ring resonators

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Zeng, Yong
Dineen, Colm
Moloney, Jerome V.
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Abstract
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We examine the role of magnetic dipoles in single and coupled pairs of metallic split-ring resonators by numerically computing their magnitude and examining their relative contributions to the scattering cross section. We demonstrate that magnetic dipoles can strongly influence the scattering cross section along particular directions. It is also found that the magnetic dipole parallel to the incident magnetic field and/or high-order multipoles may play a significant role in the linear response of coupled split-ring resonators.
Comment: 7 pages, 3 figures, 1 table
Keywords
Physics - Optics, Physics - Classical Physics
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