Pulse Duration Measurements of a Picosecond Laser-Pumped 14.7 nm X-Ray Laser.

Dunn, J. ; Smith, R. F. ; Shepherd, R. ; Booth, R. ; Nilsen, J. ; Hunter, J. R. ; Shlyaptsev, V. N.

Technical Information Center Oak Ridge Tennessee

关键词: X-ray lasers;    Laser pulse duration;    Chirped pulse amplification;    Lasers;    Pulses;   

RP-ID  :  DE200515014566

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The temporal dependence of the 14.7 nm Ni-like Pd ion x-ray laser is measured as a function of the laser drive conditions with a fast sub-picosecond x-ray streak camera. The chirped pulse amplification laser beam that pumps the inversion process is varied from 0.5 - 27 ps (FWHM) to determine the effect on the x-ray laser pulse duration. The average x-ray laser pulse duration varies by a relatively small factor of 2.5 times from 3.6 ps to 8.1 ps with travelling wave (TW) irradiation conditions. Slightly shorter pulse durations approaching 2 ps are observed with the x-ray laser operating below saturation. The x-ray laser is found to be 4 - 5 times transform-limited for 6 - 13 ps laser pumping conditions.