期刊
PHYSICAL REVIEW LETTERS
卷 86, 期 6, 页码 1110-1113出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.1110
关键词
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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.
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