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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 1, Iss. 5 — Sep. 1, 2011
  • pp: 911–920

Cylindrical electromagnetic external cloak with only axial material parameter spatially variant

Tinghua Li, Ming Huang, Jingjing Yang, Yuping Yao, and Jiang Yu  »View Author Affiliations


Optical Materials Express, Vol. 1, Issue 5, pp. 911-920 (2011)
http://dx.doi.org/10.1364/OME.1.000911


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Abstract

Electromagnetic external cloak is an important device, which can make an object outside its domain invisible, meanwhile the object can exchange information with the outer region. Based on optical transformation method, we design a simplified cylindrical electromagnetic external cloak with only axial material parameter spatially variant in this paper. The general expressions of material parameters are derived, and then the performance of the external cloak is simulated using the full wave simulations. The advantage of this external cloak is that transverse material parameters are constants, which makes it easier to realize with two-dimensional metamaterials. Besides, the effects of loss and perturbations of parameters on the performance of the cloak are also investigated. This work provides a feasible way for the fabrication of the metamaterial-assisted external cloak.

© 2011 OSA

OCIS Codes
(230.0230) Optical devices : Optical devices
(050.1755) Diffraction and gratings : Computational electromagnetic methods
(160.3918) Materials : Metamaterials
(230.3205) Optical devices : Invisibility cloaks

ToC Category:
Metamaterials

History
Original Manuscript: June 28, 2011
Revised Manuscript: July 24, 2011
Manuscript Accepted: August 9, 2011
Published: August 11, 2011

Citation
Tinghua Li, Ming Huang, Jingjing Yang, Yuping Yao, and Jiang Yu, "Cylindrical electromagnetic external cloak with only axial material parameter spatially variant," Opt. Mater. Express 1, 911-920 (2011)
http://www.opticsinfobase.org/ome/abstract.cfm?URI=ome-1-5-911


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