Transmission resonances through aperiodic arrays of subwavelength apertures

Tatsunosuke Matsui, Amit Agrawal, Ajay Nahata () and Z. Valy Vardeny ()
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Tatsunosuke Matsui: Physics Department,
Amit Agrawal: University of Utah, Salt Lake City, Utah 84112, USA
Ajay Nahata: University of Utah, Salt Lake City, Utah 84112, USA
Z. Valy Vardeny: Physics Department,

Nature, 2007, vol. 446, issue 7135, 517-521

Abstract: Shining through A Nature paper in 1998 reported the transmission of resonantly enhanced light through 'plasmonic lattices', which are metal films punctured with arrays of holes smaller than the wavelength of the light. The phenomenon generated significant interest, first as it was a surprise, and second because it has potential applications in near-field optical microscopy, photolithography, displays and elsewhere. The periodicity of the holes was thought crucial, but new experiments show that this is not so. Though randomly distributed holes arrays with quasicrystal or approximate quasicrystal structure do. As an added bonus, transmission resonances for the lattices used in this experiment are in the terahertz range, for which there is a shortage of optoelectronic materials.

Date: 2007
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DOI: 10.1038/nature05620

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