论文信息 - Pump energy reduction for a high gain Ag X-ray laser using one long and two short pump pulses.

Pump energy reduction for a high gain Ag X-ray laser using one long and two short pump pulses.

A pump scheme with one long and two short pump pulses is proposed, in a grazing incidence pumping x-ray laser (XRL) configuration. A 360 ps long pulse, prepares a plasma in a low charge state. Then, an initial short pulse ionizes the plasma to an optimal charge state, while the second short pulse induces strong collisional excitation in the gain region. With only 200 mJ of pump energy on target, a compact Ag XRL at 13.9 nm with a gain coefficient of 55 cm(-1) was achieved.

[1] G Jamelot,et al. Optimization toward a high-average-brightness soft-x-ray laser pumped at grazing incidence. , 2007, Optics letters.

[2] D. Ursescu,et al. Spectral combination of ultrashort laser pulses , 2011 .

[3] G. J. Pert. Optimizing the performance of nickel-like collisionally pumped x-ray lasers , 2006 .

[4] Antonio Lucianetti,et al. Saturated Ni-like ag x-ray laser at 13.9 nm pumped by a single picosecond laser pulse , 2003 .

[5] Vyacheslav N. Shlyaptsev,et al. Short Pulse X-Ray Laser at 32.6 nm Based on Transient Gain in Ne-like Titanium , 1997 .

[6] Hiroyuki Daido,et al. Atomic number scaling of the nickel-like soft x-ray lasers , 1997 .

[7] P. Nickles,et al. High-repetition-rate chirped-pulse-amplification thin-disk laser system with joule-level pulse energy. , 2009, Optics letters.

[8] R Keenan,et al. High-repetition-rate grazing-incidence pumped x-ray laser operating at 18.9 nm. , 2005, Physical review letters.

[9] Jorge J. Rocca,et al. Demonstration of high-repetition-rate tabletop soft-x-ray lasers with saturated output at wavelengths down to 13.9 nm and gain down to 10.9 nm , 2005 .

[10] Annie Klisnick,et al. Transient collisionally excited X-ray laser in nickel-like zirconium pumped with the PHELIX laser facility , 2004 .