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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 5 — Mar. 11, 2013
  • pp: 5941–5948

Far field free-space measurement of three dimensional hole –in –Teflon invisibility cloak

Ning Wang, Yungui Ma, Ruifeng Huang, and C. K. Ong  »View Author Affiliations


Optics Express, Vol. 21, Issue 5, pp. 5941-5948 (2013)
http://dx.doi.org/10.1364/OE.21.005941


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Abstract

In this paper, we report a fabrication of a three-dimensional (3D) carpet cloak that works for any polarization in free space. Two-dimensional (2D) conformal mapping is first employed and the 3D structure is generated by a rotation of the 2D cloak. The structure of the cloak is hole-in-dielectric. The triangular invisible region has a height of 36 mm (one third of the height of the whole device) and a width of 240 mm. The cloaking effect is examined in free space by measuring the scattering parameters. The results show our device has very good cloaking performance in a wide frequency range from 4 to10 GHz.

© 2013 OSA

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.3205) Optical devices : Invisibility cloaks

ToC Category:
Optical Devices

History
Original Manuscript: November 21, 2012
Revised Manuscript: January 16, 2013
Manuscript Accepted: January 20, 2013
Published: March 4, 2013

Citation
Ning Wang, Yungui Ma, Ruifeng Huang, and C. K. Ong, "Far field free-space measurement of three dimensional hole –in –Teflon invisibility cloak," Opt. Express 21, 5941-5948 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-5-5941


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