期刊
JOURNAL OF OPTICS
卷 12, 期 4, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2040-8978/12/4/045102
关键词
array; diffraction; reflection; trapped mode; resonance; metamaterials
类别
资金
- National Academy of Sciences of Ukraine [1-02-a]
The problem of the near-IR light reflection from and transmittance through a planar 2D periodic metal-dielectric structure with a square periodic cell of two complex-shaped asymmetric metal elements has been solved. Conditions of the light confinement by excitation of the trapped mode resonances in certain structures, both polarization-sensitive and polarization-insensitive, were studied. For the first time, the existence of a high-order trapped mode resonance with the greater quality factor than that of the lowest one has been shown. It was ascertained that the Babinet principle provides a good prediction of the resonance properties of the complementary structures, despite the very high Joule losses in the metal strips in near-IR, a finite thickness of the metal elements and the presence of a dielectric substrate.
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