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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 6 — Jun. 1, 2012
  • pp: 1245–1256

Generation of a two-dimensional limited-diffraction beam with self-healing ability by annular-type photonic crystals

Hamza Kurt and Mirbek Turduev  »View Author Affiliations


JOSA B, Vol. 29, Issue 6, pp. 1245-1256 (2012)
http://dx.doi.org/10.1364/JOSAB.29.001245


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Abstract

In this work, we present the design of a photonic structure for the generation of in-plane two-dimensional (2D) limited-diffraction beam. We have numerically investigated the characteristics of the light propagation passing through a 2D square-lattice annular-type photonic crystal shaped in an axicon configuration. Careful selection of the operating frequency as well as the optimization of the apex rod position creates a less diffracted beam whose transverse intensity profile closely resembles a zero-order Bessel function. The created beam dramatically resists against the spatial spreading over a propagation distance of 50 μm, after focusing with a spot size of 0.23μm. The self-healing capability of the generated limited-diffraction beam is demonstrated by placing obstacles with different sizes and shapes along the optical axis. The two features that accompany with such beams, i.e., diffraction-limited propagation and reconstruction ability after encountering obstructions, may strengthen its usage in manipulation of light propagation in various environments.

© 2012 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(350.5500) Other areas of optics : Propagation
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(230.5298) Optical devices : Photonic crystals

ToC Category:
Optical Devices

History
Original Manuscript: January 24, 2012
Revised Manuscript: February 26, 2012
Manuscript Accepted: February 28, 2012
Published: May 11, 2012

Citation
Hamza Kurt and Mirbek Turduev, "Generation of a two-dimensional limited-diffraction beam with self-healing ability by annular-type photonic crystals," J. Opt. Soc. Am. B 29, 1245-1256 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-6-1245

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