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.
| Original language | English |
|---|---|
| Pages (from-to) | 103-107 |
| Number of pages | 5 |
| Journal | Journal of the Korean Physical Society |
| Volume | 48 |
| Issue number | 1 |
| Publication status | Published - 2006 Jan |
Keywords
- Optical spectroscopy
- Plasmonic metamaterials
- Surface plasmon
- Terahertz
ASJC Scopus subject areas
- Physics and Astronomy(all)