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

I. V. Timofeev; V. V. Annenkov; E. P. Volchok

doi:10.1063/1.4993100

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arXiv · 1611.00655

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

I. V. Timofeev·V. V. Annenkov·E. P. Volchok

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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.

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I. V. Timofeev, V. V. Annenkov, E. P. Volchok. 2016-11-02. Generation of high-field narrowband terahertz radiation by counterpropagating plasma wakes. https://doi.org/10.1063/1.4993100

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