Generation of high-field narrowband terahertz radiation by counterpropagating plasma wakes

Abstract

It is found that nonlinear interaction of plasma wakefields driven by counterpropagating laser or particle beams can efficiently generate high-power electromagnetic radiation at the second harmonic of the plasma frequency. Using a simple analytical theory and particle-in-cell simulations, we show that this phenomenon can be attractive for producing high-field ($\sim 10$ MV/cm) narrowband terahertz pulses with the gigawatt power level and millijoule energy content.

References in corpus (4)

• Tunable Circularly Polarized Terahertz Radiation from Magnetized Gas Plasma
• Simulations of electromagnetic emissions produced in a thin plasma by a continuously injected electron beam
• High field terahertz emission from relativistic laser-driven plasma wakefields
• Two-dimensional simulations of nonlinear beam-plasma interaction in isotropic and magnetized plasmas

Cited by in corpus (2)

• Electromagnetic Emission Produced by Three-wave Interactions in a Plasma with Continiously Injected Counterstreaming Electron Beams
• Electromagnetic emission due to nonlinear interaction of laser wakefields colliding in plasma at an oblique angle