Journal
APPLIED PHYSICS LETTERS
Volume 85, Issue 19, Pages 4316-4318Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1815379
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We show that the extraordinary transmission of light through an array of square subwavelength holes is strongly influenced by the size of the holes. For small, square holes (air fraction below 20%), the dependence of the normalized transmission (transmissivity) on hole width greatly exceeds the expectations on the basis of conventional aperture theory. For larger holes, the transmissivity saturates. Moreover, the positions of the transmission maxima shift when the size is varied. (C) 2004 American Institute of Physics.
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