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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 8 — Apr. 22, 2013
  • pp: 9457–9472

Photorealistic rendering of unidirectional free-space invisibility cloaks

Jad C. Halimeh and Martin Wegener  »View Author Affiliations

Optics Express, Vol. 21, Issue 8, pp. 9457-9472 (2013)

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Carpet or ground-plane invisibility cloaks hide an object in reflection and inhibit transmission experiments by construction. This concept has significantly reduced the otherwise demanding material requirements and has hence enabled various experimental demonstrations. In contrast, free-space invisibility cloaks should work in both reflection and transmission. The fabrication of omnidirectional three-dimensional free-space cloaks still poses significant challenges. Recently, the idea of the carpet cloak has been carried over to experiments on unidirectional free-space invisibility cloaks that only work perfectly for one particular viewing direction and, depending on the design, also for one linear polarization of light only. Here, by using photorealistic ray tracing, we visualize the performance of four types of such unidirectional cloaks in three dimensions for different viewing directions and different polarizations of light, revealing virtues and limitations of these approaches in an intuitive manner.

© 2013 OSA

OCIS Codes
(080.0080) Geometric optics : Geometric optics
(080.2710) Geometric optics : Inhomogeneous optical media
(160.3918) Materials : Metamaterials
(230.3205) Optical devices : Invisibility cloaks

ToC Category:
Geometric Optics

Original Manuscript: January 15, 2013
Revised Manuscript: March 15, 2013
Manuscript Accepted: March 25, 2013
Published: April 9, 2013

Jad C. Halimeh and Martin Wegener, "Photorealistic rendering of unidirectional free-space invisibility cloaks," Opt. Express 21, 9457-9472 (2013)

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