[LOA Seminars] - Optimization and long-term stability of a kHz laser-plasma accelerator

durch Lucas Rovige (LOA)

Dienstag 12.01.2021, 14:00 → 15:00 Europe/Berlin

I will discuss recent results obtained with our kHz laser-plasma accelerator using near single-cycle and ~3mJ energy laser pulses, with significant progress in term of long term stability and repeatability. We have achieved a 5 hours continuous, hands-off operation of the LPA, accumulating more than 18 x 10^6 consecutive shots. Electron bunches with 2.6 pC charge and 2.5 MeV peak energy were generated via injection and trapping in a downward plasma density ramp. This density transition was produced in a specially designed micro-scale asymmetrically shocked gas jet. We explain the processes behind this enhanced stability with parametric study of the influence of the laser driver energy through PIC simulations.

I will also present preliminary results of controlled CEP effects on the electron beam, and especially on the beam pointing.

 

Youtube link