A novel approach for detecting transformation-optics invisibility cloaks is proposed. The detection method takes advantage of the unusual backward-propagation characteristics of recently reported beams and pulses to induce electromagnetic scattering from the cloak. Even though waves with backward-propagating energy flux cannot penetrate the cloaking shell and interact with the cloaked objects (i.e., they do not make the cloaked object visible), they provide a mechanism for detecting the presence of cloaks. © 2011 IEEE.
|Original language||English (US)|
|Title of host publication||2011 XXXth URSI General Assembly and Scientific Symposium|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|State||Published - Aug 2011|