Eur. Phys. J. Appl. Phys.
Volume 70, Number 3, June 2015
|Number of page(s)||5|
|Published online||15 June 2015|
Demonstration of soft X-ray laser generated in highly saturated capillary discharge amplifier with 4.0 mm and 3.2 mm inner diameter alumina capillaries
National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin
150080, Heilongjiang, P.R. China
2 Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, Akademicheskii pr. 2/3, 634055 Tomsk, Russia
a e-mail: HIT_JiangShan@163.com
Revised: 10 April 2015
Accepted: 15 May 2015
Published online: 15 June 2015
Capillary discharge highly saturated Ne-like Ar 46.9 nm laser had been firstly demonstrated with a 4.0 mm inner diameter alumina capillary. The intensity of laser is greater for the 4.0 mm inner diameter capillary than for the conventional 3.2 mm inner diameter capillary. The gain coefficients have been enhanced to 0.86 cm−1 and 1.3−1, for the 4.0 mm and 3.2 mm inner diameter alumina capillaries, respectively. Furthermore, an alumina capillary with a 4.0 mm or larger inner diameter possesses crucial advantages to achieve more intense or shorter wavelength soft X-ray laser.
© EDP Sciences, 2015
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