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How Does Hide An Object?

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How to hide an Object Electromagnetically

Manikanta Nallagatla Mukka Sai Manish
Electronics &Communication Department Electronics &Communication Department
Indian Institute of Technology, Roorkee Indian Institute of Technology, Roorkee manikanta001nallagatla@gmail.com m.saimanish1996@gmail.com

Abstract—
Invisibility cloaks, a subject that usually occurs in science fiction and myths, have attracted wide interest recently because of their possible realization. The biggest challenge to true invisibility is known to be the cloaking of a macroscopic object in the broad range of wavelengths visible to the human eye. Here we discuss various methods of realizing the idea ‘How to hide an Object Electromagnetically’. Method1: by incorporating the principle of transformation optics into a conventional optical lens fabrication with low-cost materials and simple manufacturing techniques. Method2: to cover-up the scattering of the hidden object with the scattering of a background object so that only the scattering of the background object can be detected by an outside observer and the hidden object disappears electromagnetically. Method3: Using Active Electromagnetic cloaking.

Literature Survey:
Invisibility, which has been a long-time goal, has received many studies with transformation optics (TO), meta-materials and other methods in recent years [1-16]. Readers can get some background on this topic with some recent reviews (see e.g., [17, 18]). There are

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