Characterization of the plasma mirror system at the J-KAREN-P facility

Abstract We report on the design and characterization of plasma mirror system installed J-KAREN-P laser at Kansai Photon Science Institute, National Institutes for Quantum Technology. The reflectivity single exceeded 80%. In addition, temporal contrast was improved by two orders magnitude 1 ps before main pulse. Furthermore, near-field spatial distribution after kept constant fluence less than 100 kJ/cm 2 . also present results investigating difference fluctuation in energy, pulse width pointing stability with without system.