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Spectrum of Cherenkov Radiation in Dispersive Metamaterials with Negative Refraction Index

By Gennadiy Burlak
Progress In Electromagnetics Research, Vol. 132, 149-158, 2012


We numerically studied the spectrum of Cherenkov optical radiation by a nonrelativistic anisotropic electron bunch crossing 3D dispersive metamaterial. A practically important case when such a medium is described by Drude model is investigated in details. In our theory only parameters of a metamaterial are fixed. The frequency spectrum of internal excitations is left to be defined as a result of the numerical simulation. It is found that a periodic field structure coupled to plasmonic excitations is arisen when the dispersive refractive index of a metamaterial becomes negative. In this case the reversed Cherenkov radiation is observed.


Gennadiy Burlak, "Spectrum of Cherenkov Radiation in Dispersive Metamaterials with Negative Refraction Index," Progress In Electromagnetics Research, Vol. 132, 149-158, 2012.


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