Abstract:
For reducing attosecond pulses energy loss in the focusing reflection process and measurement error caused by attosecond pulse focusing aberration measurement, as well as improving the operability of attosecond pulse spectroscopy monitoring, a combined focusing and spectrum-analysis system for attosecond pulse was designed through step-by-step performance optimization. The structure and characteristic parameters were given in detail. The focusing and spectrum-analyzing components are gold-coated grazing incidence toroidal mirror and grazing incidence concave focusing grating, respectively. The proposed system can find application in research platform of attosecond spectroscopy using high energy short attosecond pulse as basic probe tool.