Abstract
We systematically investigate the classification of incidence ways (represented by different field polarization and propagation directions of the impinging electromagnetic (EM) wave) and their influences on the EM resonant characteristics of split-ring resonators (SRRs). It is found that the resonance absorption varies noticeably with incidence ways and the variation could reach as large as 60 %, while transmittance almost keeps unchanged. When resonant electric response and resonant magnetic response are both excited in SRRs, EM resonance characteristics are found to be mainly dependent upon electric response rather than on magnetic response. The results also indicate that magnetic resonant wavelength (λ H) induced by coupled magnetic field H component of the EM wave is longer than electric resonant wavelength (λ E) induced by coupled electric field E, and the mechanism is discussed.
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Acknowledgments
This work was supported by the National High Technology Research and Development Program of China (No. 2013A014401), Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP) (No. 20120142110064), and Natural Science Foundation of Hubei Province (No. 2012FFB02209).
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Min, L., Huang, L., Sun, R. et al. Incidence Ways of Electromagnetic Wave and Their Influences on the Absorption and Resonant Wavelength of Split-Ring Resonators. Plasmonics 10, 183–189 (2015). https://doi.org/10.1007/s11468-014-9792-2
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DOI: https://doi.org/10.1007/s11468-014-9792-2