Active absorption of electromagnetic pulses in a cavity
Philbin, Thomas G.
New Journal of Physics
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We show that a pulse of electromagnetic radiation launched into a cavity can be completely absorbed into an infinitesimal region of space, provided one has a high degree of control over the current flowing through this region. We work out explicit examples of this effect in a cubic cavity and a cylindrical one, and experimentally demonstrate the effect in the microwave regime.
Engineering and Physical Sciences Research Council (EPSRC)
Czech Science Foundation
7 pages, 4 figures
Author version of the article. The version of record is available from the publisher via: http://dx.doi.org/10.1088/1367-2630/17/5/053050 and is an open access article.
© 2015 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
Vol. 17, 053050