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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 10 — May. 11, 2009
  • pp: 8614–8620

Invisibility cloak with a twin cavity

Tungyang Chen and Chung-Ning Weng  »View Author Affiliations

Optics Express, Vol. 17, Issue 10, pp. 8614-8620 (2009)

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We study an invisibility cloak with a twin cavity, simulated by a plane algebraic curve- hippopede. The cloaked region, which looks like eight for some sets of geometric parameters, is expanded from one single point. Using a geometric transformation approach, we demonstrate that the material parameters of cloaking layer can be exactly determined. Numerical simulations show that the incoming rays pass in and out the cloaking region twice, and return to their original trajectory outside the curved cloak. A notable feature is that the cloaking region has two hollow regions in which two objects can be hidden at one time and that they could not perceive each other.

© 2009 Optical Society of America

OCIS Codes
(160.1190) Materials : Anisotropic optical materials
(260.2110) Physical optics : Electromagnetic optics
(160.2710) Materials : Inhomogeneous optical media
(230.3205) Optical devices : Invisibility cloaks

ToC Category:
Physical Optics

Original Manuscript: March 27, 2009
Revised Manuscript: April 26, 2009
Manuscript Accepted: May 1, 2009
Published: May 6, 2009

Tungyang Chen and Chung-Ning Weng, "Invisibility cloak with a twin cavity," Opt. Express 17, 8614-8620 (2009)

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