Active absorption of electromagnetic pulses in a cavity
Horsley, S. A. R. · Foster, R. N. · Tyc, T. · Philbin, T. G.
Original · EN
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.
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