Phys. Rev. Lett. 86, 1110–1113 (2001)Near-Field Distribution of Optical Transmission of Periodic Subwavelength Holes in a Metal FilmReceived 17 July 2000; published in the issue dated 5 February 2001 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 (∼40nm) spots resulting from the interference of the surface polaritons Bragg scattered by the holes in an array. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.1110
DOI:
10.1103/PhysRevLett.86.1110
PACS:
78.20.Bh, 42.25.Fx
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