Modeling of psec-laser-driven Ne-like and Ni-like x-ray lasers

Joseph Nilsen

doi:10.1117/12.284820

1 November 1997 Modeling of psec-laser-driven Ne-like and Ni-like x-ray lasers

Joseph Nilsen

Proceedings Volume 3156, Soft X-Ray Lasers and Applications II; (1997) https://doi.org/10.1117/12.284820
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

This paper models recent experiments in which a solid titanium target was illuminated by several joules of combined energy from a nsec laser pulse to create a preplasma followed by a psec laser pulse to drive the gain. Gains greater than 200 cm^-1 are predicted for the Ne-like Ti 3p ¹S₀ yields 3s ¹P₁ transition at 32.6 nm which is driven by the monopole collisional excitation. High gain is also predicted for the 3d ¹P₁ yields 3p ¹P₁ transition at 30.1 nm which is driven by a combination of collisional excitation and self photopumping. We also discuss the possibilities for driving a Ne-like Ge laser using this approach. For the Ni-like ions we model a solid molybdenum target under similar conditions used for Ti and predict gains greater than 300 cm^-1 for the Ni-like Mo 4d ¹S₀ yields 4p ¹P₁ transition at 18.9 nm which is driven by the monopole collisional excitation. High gain is also predicted for a self photopumped 4f ¹P₁ yields 4d ¹P₁ transition at 22.0 nm and several other transitions driven by inner shell collisional ionization.

Citation Download Citation

Joseph Nilsen "Modeling of psec-laser-driven Ne-like and Ni-like x-ray lasers", Proc. SPIE 3156, Soft X-Ray Lasers and Applications II, (1 November 1997); https://doi.org/10.1117/12.284820

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