Electron beam driven generation of frequency-tunable isolated relativistic sub-cycle pulses

Abstract

We propose a novel scheme for frequency-tunable sub-cycle electromagnetic pulse generation. To this end a pump electron beam is injected into an electromagnetic seed pulse as the latter is reflected by a mirror. The electron beam is shown to be able to amplify the field of the seed pulse while upshifting its central frequency and reducing its number of cycles. We demonstrate the amplification by means of 1D and 2D particle-in-cell simulations. In order to explain and optimize the process, a model based on fluid theory is proposed. We estimate that using currently available electron beams and terahertz pulse sources, our scheme is able to produce mJ-strong mid-infrared sub-cycle pulses.

arXiv comment8 figures

References in corpus (6)

• Real-time observation of interfering crystal electrons in high-harmonic generation
• SMILEI: a collaborative, open-source, multi-purpose particle-in-cell code for plasma simulation
• High-energy mid-infrared sub-cycle pulse synthesis from a parametric amplifier
• Multi-MeV electron acceleration by sub-terawatt laser pulses
• Relativistic, single-cycle tunable-infrared pulses generated by a tailored plasma density structure
• Relativistic Mirrors in Laser Plasmas (Analytical Methods)

Cited by in corpus (4)

• Cascaded Generation of a Sub-10-Attosecond Half-Cycle Pulse
• Coherent diffraction radiation of relativistic terahertz pulses from a laser-driven micro-plasma-waveguide
• Laser wakefield driven generation of isolated CEP-tunable intense sub-cycle pulses
• Infrared single-cycle pulse induced high-energy plateaus in high-order harmonic spectroscopy