Phys. Rev. Lett. 101, 083901 (2008) [4 pages]Anomalous Power Flow and “Ghost” SourcesReceived 8 March 2006; revised 21 July 2008; published 20 August 2008 It is demonstrated that EM radiation from complex sources can result in real power in restricted regions of space flowing back towards the sources, thereby mimicking “ghost” sources. This counterintuitive mechanism of radiation does not rely on backward waves, as ordinary waves carry the power. Ways to harness the effect by making it directional are presented, together with selected applications, of which deception is a prime example due to the nature of the phenomenon. The concept can be applied to other areas, such as mechanics, acoustics, etc., and can be realized with available technology. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.083901
DOI:
10.1103/PhysRevLett.101.083901
PACS:
41.20.Jb, 42.25.Fx, 42.25.Hz
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