Share Email Print
cover

Proceedings Paper

Higher harmonic generation for the high coherent x-ray laser
Author(s): Noboru Hasegawa; Alexander V. Kilpio; Keisuke Nagashima; Tetsuya Kawachi; Masataka Kado; Momoko Tanaka; Shinichi Namba; Kenjiro Takahashi; Kouta Sukegawa; Peixiang Lu; Huajing Tang; Maki Kishimoto; Tai Renzhong; Hiroyuki Daido; Yoshiaki Kato
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We proposed a method to generate highly spatial coherent x-ray laser, in which high order harmonics was used as a seed light of a laser-produced x-ray amplifier. In this case, the intensity and the spatial coherence of the output x-ray depended on the harmonic conversion efficiency and the spectral and spatial coupling efficiencies between the harmonics and the lasing line. Based on the present x-ray lasers using a transient collisional-excitation (TCE) scheme, we investigated the values of these efficiencies, which were needed to realize a high spatial coherence. For this purpose we constructed a Ti:Sapphire laser system in which the central wavelength and the spectral bandwidth were tunable, and we conducted a preliminary experiment. The neon-like Ti x-ray laser at a wavelength of 32.4 nm was taken as an example, and harmonics at the same wavelength was generated using Ar gas target under the conditions that the central wavelength of 810 nm and the pulse duration of 1 ps. The experimental result showed that the characteristics of the harmonics were good enough to use as a seed light of x-ray lasers.

Paper Details

Date Published: 12 December 2001
PDF: 7 pages
Proc. SPIE 4505, Soft X-Ray Lasers and Applications IV, (12 December 2001); doi: 10.1117/12.450592
Show Author Affiliations
Noboru Hasegawa, Japan Atomic Energy Research Institute (Japan)
Alexander V. Kilpio, General Physics Institute (Russia)
Keisuke Nagashima, Japan Atomic Energy Research Institute (Japan)
Tetsuya Kawachi, Japan Atomic Energy Research Institute (Japan)
Masataka Kado, Japan Atomic Energy Research Institute (Japan)
Momoko Tanaka, Japan Atomic Energy Research Institute (Japan)
Shinichi Namba, Japan Atomic Energy Research Institute (Japan)
Kenjiro Takahashi, Japan Atomic Energy Research Institute (Japan)
Kouta Sukegawa, Japan Atomic Energy Research Institute (Japan)
Peixiang Lu, Japan Atomic Energy Research Institute (Japan)
Huajing Tang, Japan Atomic Energy Research Institute (Japan)
Maki Kishimoto, Japan Atomic Energy Research Institute (Japan)
Tai Renzhong, Japan Atomic Energy Research Institute (Japan)
Hiroyuki Daido, Japan Atomic Energy Research Institute (Japan)
Yoshiaki Kato, Japan Atomic Energy Research Institute (Japan)


Published in SPIE Proceedings Vol. 4505:
Soft X-Ray Lasers and Applications IV
Ernst E. Fill; Jorge J. G. Rocca, Editor(s)

© SPIE. Terms of Use
Back to Top