Active absorption of electromagnetic pulses in a cavity

Warning

This publication doesn't include Faculty of Economics and Administration. It includes Faculty of Science. Official publication website can be found on muni.cz.

Authors	HORSLEY Simon FOSTER Robert TYC Tomáš PHILBIN Thomas
Year of publication	2015
Type	Article in Periodical
Magazine / Source	New Journal of Physics
MU Faculty or unit	Faculty of Science
Citation
Web	http://iopscience.iop.org/article/10.1088/1367-2630/17/5/053050
Doi	http://dx.doi.org/10.1088/1367-2630/17/5/053050
Field	Theoretical physics
Keywords	pulse; absorption; source; drain; eigenmodes
Description	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.
Related projects:	Ústav Eduarda Čecha pro algebru, geometrii a matematickou fyziku