Preplasma conditions for collisional Mo soft x-ray lasers with the grazing incidence pumping scheme
نویسندگان
چکیده
By comparing soft x-ray spectra from experiments with numerical calculation results, the preformed plasma medium was characterized for Mo 18:9 nm x-ray lasers with the grazing incidence pumping scheme. The effects of prepulse intensities and durations on the charge state distributions as well as other parameters of preformed plasmas were investigated for previously demonstrated soft x-ray lasers. Experiments with small total energy were conducted to check the understanding of reasons why Mo 18:9 nm soft x-ray lasers were realized on laser facility platforms with parameters varying so much. © 2010 Optical Society of America OCIS codes: 140.7240, 340.7480, 300.6560.
منابع مشابه
Pulse duration measurements of grazing-incidence-pumped high repetition rate Ni-like Ag and Cd transient soft x-ray lasers.
We have measured the pulse duration of gain-saturated 13.9 nm Ni-like Ag and 13.2 nm Ni-like Cd transient collisional lasers excited by grazing-incidence-pumping for several pumping conditions. High-resolution streak-camera measurements yielded FWHM pulse durations close to 5 ps for both lasers under optimum pumping conditions. The very high brightness and short pulse duration of these new high...
متن کاملPump pulse-width dependence of grazing-incidence pumped transient collisional soft-x-ray lasers
The output energy dependence of high repetition rate grazing incidence pumped Ni-like Mo, Ni-like Ag, and Ne-like Ti transient collisional soft x-ray lasers on the duration of the pump pulse was studied combining experiments and model simulations. Lasing is observed to occur for a wide range of pump pulse widths e.g., 2 to 18 ps for Ni-like Ag , with maximum output occurring for pump pulses of ...
متن کاملOptimum driving a Z-pinch for soft X-Ray lasers
A capillary plasma z-pinch as an alternative active medium of soft X-Ray lasers was studied experimentally and theoretically. The theoretical analysis was based on the self consistent solution of the so called “snow plow” model. The dynamics of pinched plasma is determined by the capillary parameters and by the time dependence of electrical current passing through it. The current time dependenc...
متن کاملCharacterization of a 10Hz double-pulse non-normal incidence pumped transient collisional Ni-like molybdenum soft x-ray laser for applications
Stable and reliable operation demonstrated and studied with a 10 Hz Ti:sapphire laser system proves the suitability of the double-pulse non-normal incidence pumping geometry for table-top high repetition soft x-ray lasers (SXRL) on the way to applications. In this experiment a nickel-like molybdenum 4d1S0 − 4p1P1 transient collisional soft X-ray laser at 18.9 nm is investigated which is pumped ...
متن کاملHigh-repetition-rate grazing-incidence pumped x-ray laser operating at 18.9 nm.
We have demonstrated a 10 Hz Ni-like Mo x-ray laser operating at 18.9 nm with 150 mJ total pump energy by employing a novel pumping scheme. The grazing-incidence scheme is described, where a picosecond pulse is incident at a grazing angle to a Mo plasma column produced by a slab target irradiated by a 200 ps laser pulse. This scheme uses refraction of the short pulse at a predetermined electron...
متن کامل