High-resolution spectroscopy of a subpicosecond laser-produced lanthanum plasma

Jean-Claude Kieffer; Patrick Forget; Pascal Gallant; Olivier Peyrusse

doi:10.1117/12.448465

14 November 2001 High-resolution spectroscopy of a subpicosecond laser-produced lanthanum plasma

Jean-Claude Kieffer, Patrick Forget, Pascal Gallant, Olivier Peyrusse

Proceedings Volume 4504, Applications of X Rays Generated from Lasers and Other Bright Sources II; (2001) https://doi.org/10.1117/12.448465
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

Hot dense lanthanum plasmas have been produced by irradiating a solid Lanthanum target with a high contrast 400fs laser pulses at 3 X 10¹⁸ W/cm². The M-shell emission has been recorded in the wavelength range 10A-14A using a high-resolution crystal spectrometer. The emission has been time resolved using our PX1 x-ray streak camera with a temporal resolution of 350fs. A superconfiguration model for non-LTE plasmas coupled to hydrodynamics calculations is used to discuss the measurements. Our work indicates that a correct understanding of intermediate and high Z dense plasmas, created with femtosecond clean laser pluses, requires time resolved spectroscopy with femtosecond resolution and NLTE atomic physics coupled to plasma hydrodynamics.

Citation Download Citation

Jean-Claude Kieffer, Patrick Forget, Pascal Gallant, and Olivier Peyrusse "High-resolution spectroscopy of a subpicosecond laser-produced lanthanum plasma", Proc. SPIE 4504, Applications of X Rays Generated from Lasers and Other Bright Sources II, (14 November 2001); https://doi.org/10.1117/12.448465

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