High power Cherenkov radiation from a relativistic particle rotating around a dielectric ball

Peculiarities of electromagnetic field oscillations of a charged particle rotating about a conductive ball

“…The dependence of n k on the parameters (k,ω q ,r q ,r b ,ε b ) of the problem should be determined by solving the Maxwell's equations for the case when the charge rotates about the conductive ball with μ b =1. An analogous problem for a charge rotating about a ball with μ b =1, ε b (ω)≈const and ε b '(ω)>0 (dielectric ball) was solved in [20] (see also references in it). Herewith the results of analytical calculations performed in the mentioned papers are applicable without restrictions on the values of ε b (ω) and at the dependence of this quantity on the frequency ω.…”

“…In a series of papers (see [18][19][20] and references in [20]), it was shown that the interference between SR and CR induced at boundaries of spherical configuration leads to interesting effects. Investigations of radiation from a charge rotating along an equatorial orbit about/inside a dielectric ball showed that there appear high narrow peaks in the spectral distribution of the number of quanta emitted to outer space at some specific values of the ratio of ball-to-particle orbit radii and when the Cherenkov condition is satisfied for the ball material and particle speed (see [20] and refs therein). The radiated energy in the vicinity of these peaks exceeds the corresponding value for the case of homogeneous and unbounded medium by several orders of magnitude.…”

Peculiarities of Electromagnetic Oscillations Generated by a Charged Particle Crossing the Planar Boundary Between a Conducting Medium and a Vacuum

“…The interfaces between media can be used to monitor the flow of radiation emitted in various systems. The interference between TR, ChR, and synchrotron radiation induced by planar, spherical, or cylindrical boundaries resulted in interesting effects [10][11][12].…”

“…Investigations of radiation from a charged particle rotating along an equatorial orbit around or within a dielectric ball revealed high narrow peaks in the spectral distribution of the number of quanta emitted to outer space ( [12] and the references cited therein). The radiated energy in the vicinity of these peaks exceeded the corresponding value by several orders of magnitude associated with a homogeneous and unbounded medium.…”

Epitaxial Growth and Magnetic Properties of Ferromagnetic Fe3N on Si(111) by Molecular Beam Epitaxy Using AlN/3C–SiC Intermediate Layers

“…Wellknown examples are Cherenkov, transition, and diffraction radiations. In a series of papers [3][4][5][6][7][8][9][10][11] the synchrotron radiation is considered from a charge rotating around a dielectric ball/cylinder enclosed by a homogeneous medium. It has been shown that the superposition between the synchrotron and Cherenkov radiations leads to interesting effects: under the Cherenkov condition for the material of the ball/cylinder and the particle velocity, strong narrow peaks appear in the radiation intensity.…”