Article ID Journal Published Year Pages File Type
1860895 Physics Letters A 2015 4 Pages PDF
Abstract

•First proposal of photo-mixing of spatial-super-Gaussian (SSG) lasers in electron–positron (e–p) plasma.•Large amplitude nonlinear current due to the contribution of both the plasma species.•Magnetic field as an additional parameter for tunable THz radiation with a remarkable efficiency of ∼6%.

Photo-mixing of spatial-super-Gaussian lasers and electron–positron plasma are proposed for realizing a large amplitude nonlinear current in order to generate an efficient terahertz radiation. An external magnetic field together with a proper index of the lasers helps achieving controllable current and hence, the focused radiation of tunable frequency and power along with a remarkable efficiency of the scheme as ∼6%.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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