Current Optics and Photonics

  • 제7권1호
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  • Pages.97-103
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  • 2023
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  • 2508-7266(pISSN)
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  • 2508-7274(eISSN)
한국광학회 (Optical Society of Korea)
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Babinet-principle-inspired Metasurfaces for Resonant Enhancement of Local Magnetic Fields

  • Seojoo, Lee (School of Applied and Engineering Physics, Cornell University) ;
  • Ji-Hun, Kang (Department of Optical Engineering, Kongju National University)
  • 투고 : 2022.11.29
  • 심사 : 2023.01.01
  • 발행 : 2023.02.25
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초록

In this paper, we propose Babinet-principle-inspired metasurfaces for strong resonant enhancement of local magnetic fields. The metasurfaces are designed as complementary structures of original metasurfaces supporting the local enhancement of electric fields. We show numerically that the complementary structures can support spoof magnetic surface plasmons that induce strong local magnetic fields without sacrificing the deep sub-wavelength-thick nature of the metasurface. By introducing a periodic array of metallic rods in the proximity of the metasurfaces, we demonstrate that a resonant enhancement of the local magnetic fields, more than 80 times the amplitude of an incident magnetic field, can emerge from a resonance of the spoof magnetic surface plasmons.

키워드

과제정보

Research grant from Kongju National University in 2020; National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (Grant No. NRF-2021R1A2C2012617, NRF-2020R1C1C1012138).

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