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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 22 — Nov. 15, 2011
  • pp: 4335–4337

Superoscillatory diffraction-free beams

Konstantinos G. Makris and Demetri Psaltis  »View Author Affiliations

Optics Letters, Vol. 36, Issue 22, pp. 4335-4337 (2011)

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It is theoretically shown that by superimposing diffraction-free solutions of the Helmholtz equation, one can construct localized diffraction-free beams that pass through predetermined points on subwavelength distances. These beams are based on the phenomenon of superoscillations and thus do not contain any evanescent waves. The effect of an aperture and noise is examined in specific examples where truncated beams with λ / 3 subwavelength features can propagate into the far field.

© 2011 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(260.1960) Physical optics : Diffraction theory
(350.5500) Other areas of optics : Propagation

ToC Category:
Physical Optics

Original Manuscript: June 1, 2011
Revised Manuscript: August 12, 2011
Manuscript Accepted: August 16, 2011
Published: November 10, 2011

Konstantinos G. Makris and Demetri Psaltis, "Superoscillatory diffraction-free beams," Opt. Lett. 36, 4335-4337 (2011)

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