J. Phys. IV France
Volume 11, Numéro PR2, Juillet 2001
X-Ray Lasers 2000
Page(s) Pr2-197 - Pr2-200
7th International Conference on X-Ray Lasers

J. Phys. IV France 11 (2001) Pr2-197-Pr2-200

DOI: 10.1051/jp4:2001237

Investigations on femtosecond-pulse-driven soft X-ray lasers using a gas puff target irradiated with a Ti:Sapphire laser

H. Fiedorowicz1, A. Bartnik1, M. Szczurek1, T. Mocek2, H.J. Shin2, Y.H. Cha2, D.G. Lee2, K.H. Hong2 and C.H. Nam2

1  Institute of Optoelectronics, Military University of Technology, ul. Kaliskiego 2, 00-908 Warsaw, Poland
2  Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Yusong-gu, 305-701 Taejon, Korea

Experimental investigations on soft x-ray lasers based on optical field ionization of gases with an ultrashort-pulse terawatt laser system are presented. The x-ray laser active medium was created using an elongated gas puff target formed by pulsed injection of a small amount of gas from a high-pressure electromagnetic valve through a nozzle in the form of a slit. The target was irradiated with a laser pulses from a 20-fs. 50-mJ Ti:Sapphire (Ti:S) laser system Both recombination and collisional soft x-ray laser scheme have been studied. Soft x-ray spectra from nitrogen, oxygen, and xenon targets are presented and discussed.

© EDP Sciences 2001