Speaker
Aleksandr Savchenko
(National Research Nuclear University (MEPhI))
Description
This work is focused on the studying and the theory developing of a Cherenkov diffraction radiation in the terahertz (THz) frequencies range. The effect of the radiation generation, when a charged particle is flying near a target with different forms and sizes, has been studied by the method of polarization currents. For diffraction radiation this method was applied for the first time in [1], and then it was developed, including THz range [2-5].
In this work much attention is given to studying the radiation arising in a target with the shape of a triangular prism. The triangular shape of the target allows us to bring a radiation under some angles out of a target without refraction at the boundary "medium – vacuum". The expression for the angle and frequency distribution of the radiated energy is obtained and analyzed for different wavelengths and particle energies. The approximate efficiency of such THz source is estimated.
1. M.I. Ryazanov, M.N. Strikhanov, A.A. Tishchenko, JETP **99**, 311 (2004).
2. D.V. Karlovets, A.P. Potylitsyn, JETP Letters **90**, 326 (2009).
3. D.V. Karlovets, JETP **113**, 27 (2011).
4. A.A. Ponomarenko, M.I. Ryazanov, M.N. Strikhanov, A.A. Tishchenko, NIMB **309**, 223 (2013).
5. M.V. Shevelev, A.S. Kon’kov, JETP **118**, 501 (2014).
Author
Aleksandr Savchenko
(National Research Nuclear University (MEPhI))
Co-authors
Alexey Tishchenko
(National Research Nuclear University (MEPhI))
Prof.
Mikhail Strikhanov
(National Research Nuclear University (MEPhI))
