Plasmon mechanism of light transmission through a metal film or a plasma layer
arXiv:physics/0505078 · doi:10.1016/j.optcom.2005.09.016
Abstract
It is shown that a smooth metal film (or a plasma layer) can be made transparent for an electromagnetic wave when two identical subwavelength diffraction gratings are placed on both sides of the film. The electromagnetic wave transmission through the metal film is caused by excitation of evanescent surface waves (plasmons) and their transformation into propagating waves at the gratings. A model which is developed analytically shows that the problem of the wave transmission is physically equivalent to the problem of excitation of two coupled resonators of evanescent waves which are formed at the two film surfaces.
10 pages, 6 figures, minor corrections, Opt. Communications, in press
References in corpus (6)
- Fano-type interpretation of red shifts and red tails in hole array transmission spectra
- Role of Wood anomalies in optical properties of thin metallic films with a bidimensional array of subwavelength holes
- Extraordinary optical transmission without plasmons: the s-polarization case
- Amplification of evanescent waves in a lossy left-handed material slab
- What are the left-handed media and what is interesting about them?
- Light transmission assisted by Brewster-Zennek modes in chromium films carrying a subwavelength hole array