Abstract

Radiation of charged particles moving in the presence of dielectric targets is of essential importance for various applications in accelerator and beam physics. As a rule, the sizes of these targets are much larger than the wavelengths under consideration. This fact gives an obvious small parameter of the problem and allows developing approximate methods for analysis. Here we apply one such method (called the “aperture method” in our preceding papers) to analysis of Cherenkov radiation from a charge flying through a vacuum channel in a dielectric sphere. We present analytical results and describe the main physical effects. Typical angular and radial distributions of the radiation field are also presented. In particular, it is shown that the field has an expressed maximum at a certain distance from the sphere. Special attention is paid to the far-field area where the radiation is formed, and corresponding angular distribution does not depend on the distance from the sphere.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Short-wavelength radiation of a charge moving in the presence of a dielectric prism

Ekaterina S. Belonogaya, Sergey N. Galyamin, and Andrey V. Tyukhtin
J. Opt. Soc. Am. B 32(4) 649-654 (2015)

Infrared diffraction radiation from twin circular dielectric rods covered with graphene: plasmon resonances and beam position sensing

Dariia O. Herasymova, Sergii V. Dukhopelnykov, and Alexander I. Nosich
J. Opt. Soc. Am. B 38(9) C183-C190 (2021)

Cherenkov radiation combined with the complex Doppler effect in left-handed metamaterials

D. Ziemkiewicz and S. Zielińska-Raczyńska
J. Opt. Soc. Am. B 32(8) 1637-1644 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (33)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription