Местоположение издательства:[Bristol, UK], England
Первая страница:talk 2.9.2
Аннотация:We develop new approach to the problem of generation of electromagnetic radiation of the terahertz bandwidth in nonequilibrium plasma channels created by high-intensity laser radiation in gases. Key idea of the proposed approach consist in superimposing of additional amplification to the two-colour laser-induced generated THz pulse due to the specific properties of nonequilibrium plasma channel. It is planned to perform a self-consistent analysis of the processes of terahertz pulse formation by the four-wave mixing process and it further propagation and amplification in a nonequilibrium plasma medium in a wakefield of the laser pulse [1]. Optimal parameters for the pump laser pulse and gaseous medium will be determined for the most efficient conversion of its energy into terahertz pulse.
[1] Bogatskaya A. V., Volkova E. A., Popov A. M. Generation and amplification of sub-THz radiation in a plasma of rare gases formed by two-color femtosecond laser pulse // Laser Physics Letters. — 2018. — Vol. 15, no. 6. — P. 065301.