Soft xhyphen;ray emission from plasmas produced by ultraintense KrFhyphen;laser pulses in colloidal Al

摘要

The interaction of subpicosecond KrFhyphen;laser pulses with polished and colloidal metal surfaces at an intensity of 8times;1015W/cm2was investigated experimentally. The measurements with spectral and temporal resolution for the colloidal targets showed a higher energy conversion efficiency into soft x rays and an increase in xhyphen;ray pulse lengths. copy;1996 American Institute of Physics.