Abstract
Optical transmission of a two-dimensional array of subwavelength holes in a metal film has been numerically studied using a differential method. Transmission spectra have been calculated showing a significant increase of the transmission in certain spectral ranges corresponding to the excitation of the surface polariton Bloch waves on a metal surface with a periodic hole structure. Under the enhanced transmission conditions, the near-field distribution of the transmitted light reveals an intensity enhancement greater than 2 orders of magnitude in localized (similar to 40 nm) spots resulting from the interference of the surface polaritons Bragg scattered by the holes in an array.
| Original language | English |
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| Pages (from-to) | 1110-1113 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 86(6) |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 05 Feb 2001 |
ASJC Scopus subject areas
- General Physics and Astronomy