Based on optical transformation theory, an anistropic but homogeneous shifting medium is proposed to make multiple objects with the same shape appear as only one. Potential applications, e.g., enhancing the signal strength of current plane antennas and antenna arrays, are discussed in detail. Illusion optics, e.g., turning a spoon into a cup with an isotropic and homogeneous antiobject and a dielectric cup, is investigated. Such a homogeneous shifting medium can be extended to design an antiobject-independent external cloak. Finite element simulations for two-dimensional cases have been performed to demonstrate these properties.
© 2011 Optical Society of America
Original Manuscript: May 31, 2011
Revised Manuscript: June 21, 2011
Manuscript Accepted: June 22, 2011
Published: July 22, 2011
Xiaofei Zang and Chun Jiang, "Overlapped optics, illusion optics, and an external cloak based on shifting media," J. Opt. Soc. Am. B 28, 1994-2000 (2011)