THz generation by the beating of two high intense laser beams
Abstract
The nonlinear coupling of two high-power laser beams in plasmas in the presence of a transverse, static electric field is investigated to generate a difference frequency terahertz (THz) radiation. The relativistic variation of electron mass in the presence of two high-power laser beams is responsible for producing a nonlinear current driving the THz radiation. For typical laser and plasma parameters, we report the efficiency of the order of ~10-4 for the current scheme.
- Publication:
-
Journal of Plasma Physics
- Pub Date:
- October 2013
- DOI:
- 10.1017/S0022377813000251
- Bibcode:
- 2013JPlPh..79..657N