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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 11 — Nov. 1, 2008
  • pp: 1776–1779

Cloak of arbitrary shape

Jingjing Zhang, Yu Luo, Hongsheng Chen, and Bae-Ian Wu  »View Author Affiliations


JOSA B, Vol. 25, Issue 11, pp. 1776-1779 (2008)
http://dx.doi.org/10.1364/JOSAB.25.001776


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Abstract

We propose a segmentation design approach for a cloak of arbitrary shape. We suggest that polygonal 2D cloaks with any number of sides, which do not require geometrical symmetry, can be achieved by dividing the polygon into many triangular regions and applying a spatial transformation on each triangle. This idea is verified by full-wave finite-element-based simulations, showing electromagnetic waves smoothly guided around cloaked perfect-conducting cylinders with different shapes of cross sections. This segmentation-transformation method can be well extended to cloaking of arbitrary shapes, including 3D cases. As an example, we simulate a cylindrical cloak whose cross section is very close to the contour of a woman, which demonstrates the validity of our method and further confirms the power of transformation optics.

© 2008 Optical Society of America

OCIS Codes
(260.2110) Physical optics : Electromagnetic optics
(290.5839) Scattering : Scattering, invisibility

ToC Category:
Scattering

History
Original Manuscript: May 15, 2008
Revised Manuscript: August 8, 2008
Manuscript Accepted: August 22, 2008
Published: October 7, 2008

Citation
Jingjing Zhang, Yu Luo, Hongsheng Chen, and Bae-Ian Wu, "Cloak of arbitrary shape," J. Opt. Soc. Am. B 25, 1776-1779 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-11-1776

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