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- Kim, Dai-Sik
- Nano Optics Group
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Impedance matching plasmonic metamaterials to vacuum
- Issued Date
- 2006-01
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.48, no.1, pp.103 - 107
- Abstract
- We report on a 100% transmission in one- and two-dimensional plasmonic metamaterials in the terahertz frequency range. At a specific frequency at which the plasmonic meta material is perfectly impedance matched to vacuum, the metal material becomes essentially invisible. In the case of a two-dimensional array of square holes, perfect impedance matching occurs when the effective dielectric constant becomes -2 for samples with hole coverages larger than 0.19. In a one-dimensional array of slits, transmission becomes 100% when a symmetric eigenmode is excited and therefore the system becomes effectively impedance-matched.
- Publisher
- KOREAN PHYSICAL SOC
- ISSN
- 0374-4884
- Keyword (Author)
- surface plasmon, terahertz, optical spectroscopy, plasmonic metamaterials
- Keyword
- SURFACE-PLASMONS, HOLE ARRAYS, TRANSMISSION, RESONANCE, GRATINGS, PERFORMANCE
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