7th International Conference on X-Ray Lasers

J. Phys. IV France 11 (2001) Pr2-155-Pr2-158
DOI: 10.1051/jp4:2001230

Wave-front evaluation of the Ni-like Ag laser

K. Murai¹, S. Sebban^{2, 3}, H.J. Tang^{2, 4}, Y. Yoshizumi², H. Daido^{2, 4}, Y. Kato⁴, A. Klisnick⁵, Ph. Zeitoun⁵, S. Wang⁶, Y. Gu⁶, G. Huang⁶ and Z. Lin<sup>6

1</sup>  Osaka National Research Institute, AIST, MITI, 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
²  Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
³  Laboratoire d'Optique Appliquée, ENSTA, École Polytechnique, UMR 7639 du CNRS, 91761 Palaiseau cedex, France
⁴  Advanced Photon Research Center, Kansai Research Establishment, Japan Atomic Energy Research Institute, Kizu, Kyoto 619-0215, Japan
⁵  Laboratoire de Spectroscopie Atomique et Ionique, Université Paris-Sud, 91405 Orsay cedex, France
⁶  National Laboratory for High Power Lasers and Physics, P.O. Box 800-211 Shanghai, China

Abstract
Coherent x-ray lasers are desired for various applications such as holography of biological samples and diagnostics of laser-produced plasmas. However, the shape of the x-ray laser had not been examined. Information about its wave-front shape is also important for future application of x-ray lasers in research and industry. In this paper, we report the evaluation of the shape of the wave-front of the x-ray laser. Ni-like Ag lasers at 13.9 nm were examined in IV-01-GXII experiment at GEKKO XII glass laser facility at ILE, Osaka Univ. The fringe patterns generated using crossed wires located in the beam were recorded on the x-ray CCD. Our experimental results indicate that x-ray laser emitted from an end of a plasma column has a property of a point light source.

© EDP Sciences 2001