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Negative refraction can make non-diffracting beams.

Kaliteevski, A. and Brand, S. and Abram, R.A. and Gallant, A.J. and Chamberlain, J.M. (2008) 'Negative refraction can make non-diffracting beams.', Optics express., 16 (19). pp. 14582-14587.


We report the results of simulations relating to the illumination of a structure consisting of a slab constructed from a 2-D hexagonal array of metal rods with a terahertz frequency source. As a consequence of negative refraction an essentially non-divergent beam pattern is observed. Although the results presented relate to the terahertz regime they should also be applicable at other frequencies. (C) 2008 Optical Society of America.

Item Type:Article
Keywords:Physical optics, Electromagnetic optics, Photonic crystals.
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Publisher statement:© 2008 The Optical Society. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Date accepted:No date available
Date deposited:08 March 2011
Date of first online publication:September 2008
Date first made open access:No date available

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