Share Email Print
cover

Proceedings Paper

Ultrahigh-gain Ni-like Kr soft x-ray laser by optical field ionization-initiated transient collisional excitation scheme
Author(s): Oki Maya; Yutaka Nagata; Minoru Obara; Yoshinobu Aoyagi; Katsumi Midorikawa
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We propose a Ni-like Kr soft x-ray laser operating on the 4d1S0 - 4p1P1 transition at 32.8 nm by a novel excitation scheme in which optical field ionization prepares Ni-like Kr ion with almost 100% abundance and inverse bremsstrahlung heats the plasma efficiently. The numerical calculation based on the hot-spot model predicts that ultra-high gains greater than 1000 cm-1 in the low density plasma (Ne equals 5.6 X 1019 cm-3) for a driving laser intensity of 1.75 X 1016 W/cm2. With a longitudinally pumping, output energy greater than 1 (mu) J and an energy efficiency of approximately 10-5 are expected with 200-torr Kr gas.

Paper Details

Date Published: 21 October 1999
PDF: 8 pages
Proc. SPIE 3776, Soft X-Ray Lasers and Applications III, (21 October 1999); doi: 10.1117/12.366662
Show Author Affiliations
Oki Maya, Keio Univ. (Japan)
Yutaka Nagata, RIKEN--The Institute of Physical and Chemical Research (Japan)
Minoru Obara, Keio Univ. (Japan)
Yoshinobu Aoyagi, RIKEN--The Institute of Physical and Chemical Research (Japan)
Katsumi Midorikawa, RIKEN--The Institute of Physical and Chemical Research (Japan)


Published in SPIE Proceedings Vol. 3776:
Soft X-Ray Lasers and Applications III
Jorge J. G. Rocca; Luiz Barroca Da Silva, Editor(s)

© SPIE. Terms of Use
Back to Top