Abstract
We propose two metamaterials with sub-wavelength double-slots ⌋ single-side double-slot metamaterial and double-side double-slot metamaterial. The dependence of the electromagnetic resonances and local intensity enhancements on the structural parameters is studied by thefnite-difference time-domain technique and thefnite element method. Results show that the central-arm of a double-slot structure strongly influences frequency and local intensities at both highand low-frequency resonances. Very strongfeld localization can be achieved at the high-frequency resonance and its particular distribution can be well controlled by the width of the central-arm. A double-side double-slot structure can be utilized to separately enhance the high-frequency resonance, while suppressing the low-frequency resonance. The simulation results are discussed in terms of plasmon resonances.
Original language | English (US) |
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Pages (from-to) | 161-177 |
Number of pages | 17 |
Journal | Progress in Electromagnetics Research |
Volume | 113 |
DOIs | |
State | Published - 2011 |
ASJC Scopus subject areas
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering