[CALA Ultra-Intense Seminar] Enabling high repetition rate laser wakefield acceleration at high and low plasma densities

durch Prof. Howard Milchberg (University of Maryland)

Freitag 18.12.2020, 15:00 → 16:00 Europe/Berlin

I will present recent results from 2 sets of laser plasma acceleration experiments spanning 4 orders of magnitude in plasma density. In near critical density hydrogen plasmas using 5 fs, < 3mJ laser pulses , we have demonstrated acceleration of few pC quasi-monoenergetic electron bunches up to 15 MeV at 1 kHz, at a record low beam divergence <10 mrad. Mitigation of carrier envelope phase slip is key to this result. At the other extreme of plasma density, we have demonstrated 2 techniques for generation of metre-scale low density plasma waveguides up to several hundred Rayleigh ranges in length, with recent preliminary results showing guiding of several hundred terawatts.

YouTube Link