"星光"超短超强激光实验平台发展现状OA

This review summarizes the evolution and present capabilities of the XingGuang ultrashort and ultra-intense laser platform at the National Key Laboratory of Plasma Physics(CAEP),which integrates the XingGuang-Ⅲ(XG-Ⅲ)multi-pulse facility and the all-OPCPA SILEX-Ⅱ multi-petawatt system.Targeting inertial confinement fusion(ICF),high-energy-density physics(HEDP),and matter under extreme conditions,the platform enables both extreme-state creation and time-resolved pump-probe measurements.We outline the system architecture,key enabling technologies,and experimental capabilities.The XG-Ⅲ facility adopts a common-seed,split-and-amplify design that delivers femtosecond/picosecond/nanosecond beams with sub-picosecond timing jitter less than 1.32 ps;typical operating parameters include about 20 J/26.8 fs,about 370 J/(0.48-10 ps)and about 575 J/1 ns,with on-target focal spots below 10 μm(fs)and 20 μm(ps).SILEX-Ⅱ employs a full optical parametric chirped-pulse amplification(OPCPA)chain to achieve a peak of power about 5 PW after compression to about 18.6 fs while retaining more than 90 J,combining greater than 1010 temporal contrast(tens of ps before the main pulse)with near-diffraction-limited focusing(about 3.3×4.0 μm FWHM)enabled by adaptive optics and achromatic compensation,reaching intensities above 1020 W/cm2.In addition,we present representative multi-beam,coordinated experiments enabled by the platform,including three-dimensional proton imaging of temperature-gradient-driven Weibel magnetic fields and energy-loss measurements of intense ion beams in warm dense plasmas,highlighting its strong potential for frontier research.