Chatska V. Regular and stochastic dynamic of electromagnetic waves and charged particles inside the plasma and solid-state media

Object of research: influence of inhomogeneities and fluctuations on interaction dynamics of electromagnetic waves and charged particles inside various madia. The purpose of research: the revealing of physical regularities of influence of inhomogeneities and fluctuations on interaction dynamics of electromagnetic waves and charged particles inside various madia. Methods of research: the theoretical results were obtained using methods of nonlinear radiophisics. Theoretical and practical new results: It is shown the possibility of electromagnetic waves phase focusing in inhomogeneous plasma which is similarly Veksler-McMillan autophasing. The maximum critical length and time when the regular signal is not yet destroyed by fluctuations under plasma-beam instability are obtained. It is shown that fluctuations result in parametric instability evolution of gyrotropic medium eigen waves. The waves energy is grown exponentially. It is shown that the influence of fluctuations on the dynamics of charged particles is anomalously large under cyclotron autoresonance conditions. The results of the work can be used for electromagnetic waves phase focusing, development of electromagnetic waves generators and charged particles accelarators. The field of application: the technique of the centimeter and millimetre wavelength ranges