Focusing of light by a nano-hole array
Focusing of light by a nano-hole array
Here for the first time we demonstrate experimentally and theoretically that the Talbot effect on a quasi-periodic array of nano-holes may be used to achieve sub-wavelength field localizations and well-isolated 'hot spots' of high electromagnetic energy concentration.Here we report on how a quasi-periodic array of holes creates sub-wavelength localizations of light without evanescent waves and how the fields created by such diffraction fall into the class of super-oscillating fields [1]. This effect offers a new way to achieve sub-wavelength imaging in the far field.
Zheludev, N.
32fb6af7-97e4-4d11-bca6-805745e40cc6
April 2007
Zheludev, N.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Zheludev, N.
(2007)
Focusing of light by a nano-hole array.
Condensed Matter and Materials Physics Conference (CMMP 2007), , Leicester, United Kingdom.
12 - 13 Apr 2007.
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Conference or Workshop Item
(Paper)
Abstract
Here for the first time we demonstrate experimentally and theoretically that the Talbot effect on a quasi-periodic array of nano-holes may be used to achieve sub-wavelength field localizations and well-isolated 'hot spots' of high electromagnetic energy concentration.Here we report on how a quasi-periodic array of holes creates sub-wavelength localizations of light without evanescent waves and how the fields created by such diffraction fall into the class of super-oscillating fields [1]. This effect offers a new way to achieve sub-wavelength imaging in the far field.
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Published date: April 2007
Venue - Dates:
Condensed Matter and Materials Physics Conference (CMMP 2007), , Leicester, United Kingdom, 2007-04-12 - 2007-04-13
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Local EPrints ID: 57768
URI: http://eprints.soton.ac.uk/id/eprint/57768
PURE UUID: 3b5fc292-6247-404d-9fed-d400992b0235
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Date deposited: 11 Aug 2008
Last modified: 16 Mar 2024 02:43
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Author:
N. Zheludev
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