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Improved gas-jet based extreme ultraviolet, soft X-ray laser plasma source
Author(s) -
Jonathan Holburg,
Matthias Müller,
Klaus Mann
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.418075
Subject(s) - nozzle , extreme ultraviolet , plasma , optics , laser , jet (fluid) , ultraviolet , wavefront , soft x rays , materials science , physics , plasma diagnostics , mechanics , nuclear physics , thermodynamics
We present a new nozzle design for an improved brilliance of laser-produced gas plasmas emitting in the soft X-ray and extreme ultraviolet spectral regime. A rotationally asymmetric gas jet is formed by employing two closely adjacent nozzles facing each other under the angle of 45°. The generated three-dimensional gas density distribution is tomographically analyzed using a Hartmann-Shack wavefront sensor. A comparison with numerical simulations accomplishes an optimization of the nozzle arrangement. The colliding gas jets create an optimized gas distribution with increased density, leading to a significant brilliance enhancement of the extreme ultraviolet, soft X-ray plasma.

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