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Excitation of trapped modes from a metasurface composed of only Z-shaped meta-atoms
- Source :
- Applied Physics Letters, Applied Physics Letters, American Institute of Physics, 2013, 103 (18), ⟨10.1063/1.4827880⟩, Applied Physics Letters, 2013, 103 (18), ⟨10.1063/1.4827880⟩
- Publication Year :
- 2013
- Publisher :
- AIP Publishing, 2013.
-
Abstract
- A printed planar Z-shaped meta-atom has recently been proposed as an alternative design to the conventional electric-LC resonator for achieving negative permittivity. Transforming the LC topology of the resonator helps to facilitate transposition of geometrical parameters for the optical regime and also to improve the metamaterial homogeneity. In this work, we discuss about the excitation of a dark or trapped mode in such Z-shaped meta-atom. The electromagnetic behavior of the meta-atom has been investigated through both simulations and experiments in the microwave regime. Our results show that the Z meta-atom exhibits a trapped mode resonance. Depending on the orientation of the polarized electromagnetic field with respect to the Z atom topology and the incident plane, the excitation of the dark mode can lead either to a narrowband resonance in reflection or to a very asymmetric Fano-like resonance in transmission, analog of electromagnetically induced transparency. Compared to other structures, the Z me...
- Subjects :
- Electromagnetic field
Physics
Permittivity
Physics and Astronomy (miscellaneous)
business.industry
Electromagnetically induced transparency
Metamaterial
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Molecular physics
[SPI]Engineering Sciences [physics]
Resonator
Optics
Planar
0103 physical sciences
010306 general physics
0210 nano-technology
business
ComputingMilieux_MISCELLANEOUS
Excitation
Microwave
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 103
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi.dedup.....6582595327e26c8a9f6c93fdd49c4f23