Soft xhyphen;ray lasing and its spatial characteristics in a lithiumhyphen;like silicon plasma

摘要

Experimental study of soft xhyphen;ray laser carried out on the LF12 Laser Facility of SIOM (Shanghai Institute of Optics and Fine Mechanics) is reported. Soft xhyphen;ray amplifications were observed in lithiumhyphen;like silicon ions by linehyphen;focused laser irradiation of slab targets. Based on the timehyphen;integrated measurements, the gain coefficients are 1.5 and 1.4 cmminus;1for the 5fndash;3d(88.9 Aring;) and the 5dndash;3p(87.3 Aring;) transitions of lithiumhyphen;like silicon ions, respectively. In addition, the spatial characteristics of the laser lines are also presented.