Physical bounds on electromagnetic invisibility and the potential of superconducting cloaks

• Published in: Photonics and nanostructures Vol. 12; no. 4; pp. 330 - 339
• Main Authors: Monticone, Francesco, Alù, Andrea
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Tokyo Elsevier B.V 01.08.2014; Elsevier
• Subjects: Applied classical electromagnetism; Cloaking; Diffraction and scattering; Electromagnetic wave propagation, radiowave propagation; Electromagnetism; electron and ion optics; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Metamaterials; Optics; Physics; Superconductors; Wave optics; Cloaking; Superconductors; Metamaterials; Electromagnetic wave scattering; Electrodynamics; Invisibility cloaks; Plasmonics; Metamaterial; Cross sections

•Physical bounds on cloaking imply more scattering than expected when integrated over frequency.•Superconductors may help reducing the scattering, both globally and locally.•The unique physics of superconductors appears ideally suited for plasmonic and mantle cloaking.•We discuss how these bounds ma...