Pulsed Mid-infrared Radiation from Spectral Broadening in Laser Wakefield Simulations

Abstract

Spectral red-shifting of high power laser pulses propagating through underdense plasma can be a source of ultrashort mid-infrared (MIR) radiation. During propagation, a high power laser pulse drives large amplitude plasma waves, depleting the pulse energy. At the same time, the large amplitude plasma wave provides a dynamic dielectric response that leads to spectral shifting. The loss of laser pulse energy and the approximate conservation of laser pulse action imply that spectral red-shifts accompany the depletion. In this paper, we investigate, through simulation, the parametric dependence of MIR generation on pulse energy, initial pulse duration, and plasma density.

References in corpus (1)

• Generating multi-GeV electron bunches using single stage laser wakefield acceleration in a 3D nonlinear regime

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