In this work we will present a new diode-pumped, OPCPA-based few-cycle, high energy, high power mid-infrared laser system, providing few-cycle pulses at high repetition rate. Plans for its subsequent amplification to the mJ level at 10 Hz are also shown.
These lasers will be used as the main drivers for high harmonic generation and laser-plasma acceleration experiments in Portugal. Additionally, they will be open for access by external users. This will be an unprecedented experimental capability at the national level, allowing experiments in a novel physical regime.
Plasma wakefield acceleration is the most promising acceleration technique known nowadays, able to provide very high accelerating fields (> 100 GV/m), enabling acceleration of electrons to GeV energy in few centimeters. Here we present all the plasma related activities currently underway at SPARC LAB exploiting the high power laser FLAME. In particular, we will give an overview of the single shot diagnostics employed: Electro Optic Sampling (EOS) for temporal measurement and optical transition radiation (OTR) for an innovative one shot emittance measurements. In detail, the EOS technique has been employed to measure for the first time the longitudinal profile of electric field of fast electrons escaping from a solid target, driving the ions and protons acceleration, and to study the impact of using different target shapes. Moreover, a novel scheme for one shot emittance measurements based on OTR, developed and tested at SPARC LAB LINAC, will be shown.