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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 24, Iss. 10 — Oct. 1, 2007
  • pp: A39–A44

Metamaterials with gradient negative index of refraction

Anatoliy O. Pinchuk and George C. Schatz  »View Author Affiliations


JOSA A, Vol. 24, Issue 10, pp. A39-A44 (2007)
http://dx.doi.org/10.1364/JOSAA.24.000A39


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Abstract

We propose a new metamaterial with a gradient negative index of refraction, which can focus a collimated beam of light coming from a distant object. A slab of the negative refractive index metamaterial has a focal length that can be tuned by changing the gradient of the negative refractive index. A thin metal film pierced with holes of appropriate size or spacing between them can be used as a metamaterial with the gradient negative index of refraction. We use finite-difference time-domain calculations to show the focusing of a plane electromagnetic wave passing through a system of equidistantly spaced holes in a metal slab with decreasing diameters toward the edges of the slab.

© 2007 Optical Society of America

OCIS Codes
(240.0310) Optics at surfaces : Thin films
(240.6680) Optics at surfaces : Surface plasmons
(260.2110) Physical optics : Electromagnetic optics

History
Original Manuscript: January 19, 2007
Revised Manuscript: July 2, 2007
Manuscript Accepted: July 5, 2007
Published: September 6, 2007

Virtual Issues
Photonic Metamaterials (2007) JOSA A

Citation
Anatoliy O. Pinchuk and George C. Schatz, "Metamaterials with gradient negative index of refraction," J. Opt. Soc. Am. A 24, A39-A44 (2007)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-24-10-A39

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