Energy Loss of Charged Particles on the Eigenmode Excitation in Cylindrical Structures With Two-Dimensional Electron Gas

Dormidontov, A. V.; Prokopenko, Yu.V.; Khankina, S. I.; Yakovenko, V. M.

doi:10.1615/telecomradeng.v75.i6.30

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The conditions were found under which there is electromagnetic gyrosynchrotron radiation in the system. Dispersion equations were obtained characterizing the eigenmodes of semiconductor (or dielectric) cylinders with a layer of two-dimensional (2D)-electron gas on a side surface, and the energy losses of a charged particle were determined when it moves along a spiral path around such a structure [38]. The dispersion dependencies of slow eigenwaves of the system were obtained, and the energy losses of a particle moving in an external magnetic field were found when the field vector is parallel to the longitudinal axis of cylindrical structure symmetry.…”

Section: Types Of Wgm Resonatorsmentioning

confidence: 99%

“…The formula for the energy loss of the particle per unit time was obtained and analyzed [37, 38]. It should be noted that in [38] the formula has a universal character.…”

Section: Types Of Wgm Resonatorsmentioning

confidence: 99%

“…The formula for the energy loss of the particle per unit time was obtained and analyzed [37, 38]. It should be noted that in [38] the formula has a universal character. The formula allows the energy losses of the charged particle to be obtained when it rotates and/or moves translationally, as well as losses of the charged ring encircling cylinder that is also moved translationally.…”

Section: Types Of Wgm Resonatorsmentioning

confidence: 99%

See 2 more Smart Citations

Whispering gallery mode resonators in microwave physics and technologies

Barannik

Yakovenko

Cherpak

et al. 2016

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

We review the main results of the development of whispering gallery mode (WGM) resonators and their unique applications due to their quasi-optical functionality. Several types of advanced WGM resonators are proposed by the authors. The theoretical results are described for the resonators with an analytical solution of the electromagnetic problems. Special emphasis is given to the interaction of moving charged particles and waves of cylindrical resonators. Important aspects are described concerning the developed sapphire resonators, for which an exact solution can only be found by using specially designed computer program products. A separate section of the paper is devoted to application aspects of the WGM resonators. In particular, it describes advanced solutions for overcoming the problems of measuring the small microwave (MW) surface impedance of unconventional superconductors in the form of large-area thin films and small samples under study. In addition, a demonstration of accurate complex permittivity measurements of small volumes of lossy liquids is provided. Special emphasis is given to highly stable MW signal sources, namely Ka-band transistor-based feedback oscillator and solid-state maser WGM oscillators. Recently obtained results are presented of experimental studies of the auto-oscillatory system developed on the basis of the WGM resonator with relativistic electron beam.

show abstract

Section: Types Of Wgm Resonatorsmentioning

confidence: 99%

“…The formula for the energy loss of the particle per unit time was obtained and analyzed [37, 38]. It should be noted that in [38] the formula has a universal character.…”

Section: Types Of Wgm Resonatorsmentioning

confidence: 99%

Section: Types Of Wgm Resonatorsmentioning

confidence: 99%

See 1 more Smart Citation

Whispering gallery mode resonators in microwave physics and technologies

Barannik

Yakovenko

Cherpak

et al. 2016

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

show abstract

Interaction between a tubular beam of charged particles and a dispersive metamaterial of cylindrical configuration

2017

View full text Add to dashboard Cite

The interaction between a tubular beam of charged particles and a dispersive metamaterial of cylindrical configuration has been investigated theoretically. This metamaterial may have negative permittivity and negative permeability simultaneously over a certain frequency range where it behaves like a left-handed metamaterial. The dispersion equation for the eigenmodes spectra of a metamaterial and the coupled modes spectra of the system have been derived and numerically analyzed. It has been found that the absolute beam instability of bulk-surface waves occurs because of peculiarities of the eigenmodes spectra of a left-handed metamaterial. Specifically, the resonant frequency behavior of the permeability causes the emergence of the sections of dispersion curves with anomalous dispersion. It has been demonstrated that the symmetric bulk-surface mode with two field variations along the cylinder radius possesses the maximum value of instability increment. The obtained results allow us to propose the left-handed metamaterial as the delaying medium in oscillators of electromagnetic radiation without a need to provide an additional feedback in the system just as in a backward-wave tube.

show abstract