Electromagnetic interaction of split-ring resonators: The role of separation and relative orientation
Electromagnetic interaction of split-ring resonators: The role of separation and relative orientation
Autor: |
N. Feth, M. König, M. Husnik, K. Stannigel, J. Niegemann, K. Busch, M. Wegener, and S. Linden
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Links: |
Publikation
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Quelle: |
Opt. Express 18, 6545 (2010)
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Datum: |
15.3.2010 |
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Abstract:
Extinction cross-section spectra of split-ring-resonator dimers have
been measured at near-infrared frequencies with a sensitive spatial
modulation technique. The resonance frequency of the dimer's coupled
mode as well as its extinction cross-section and its quality factor
depend on the relative orientation and separation of the two split-ring
resonators. The findings can be interpreted in terms of electric and
magnetic dipole-dipole interaction. Numerical calculations based on a
Discontinuous Galerkin Time-Domain approach are in good agreement with
the experiments and support our physical interpretation.