Quasi-Cherenkov Radiation from Relativistic Particles Passing Through a Photonic Crystal
arXiv:1406.2126 · doi:10.1016/j.nimb.2015.02.006
Abstract
The expressions for spectral-angular distribution of quasi-Cherenkov radiation emitted by a relativistic particle traversing a photonic crystal are derived. It is shown that for a relativistic particle, passing through a photonic crystal formed by periodically strained threads, the intensity of quasi-Cherenkov radiation emitted at small angles to the direction of particle motion, as contrasted to ordinary Cherenkov radiation, exhibits anisotropic properties as the the photon momentum is rotated about the direction of particle motion (as the crystal is rotated about the direction of particle motion at fixed-angle observation of the outcoming photon). The intensity of quasi-Cherenkov radiation in terahertz and optical ranges is shown to be high enough to allow the experimental study of quasi-Cherenkov radiation in these frequency ranges.
24 pages, 3 eps figures
References in corpus (5)
- All-optical Compton gamma-ray source
- Nonlocal Homogenization Model for a Periodic Array of Epsilon-Negative Rods
- Channeling, Radiation and Reactions in Crystals at High Energy
- Parametric (quasi-Cherenkov) cooperative radiation produced by electron bunches in natural or photonic crystals
- Photon Emission from Charged Particles Moving in Undulators Placed in a Photonic Crystal