Observation of Laser-Induced Spark in the Density Jump in a Gas-Jet Target
- Authors: Nechai A.N.1, Perekalov A.A.1,2, Chkhalo N.I.1, Salashchenko N.N.1
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Affiliations:
- Institute for Physics of Microstructures, Russian Academy of Sciences
- Lobachevsky State University of Nizhny Novgorod
- Issue: Vol 45, No 10 (2019)
- Pages: 970-972
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/208441
- DOI: https://doi.org/10.1134/S1063785019100110
- ID: 208441
Cite item
Abstract
In the design of powerful laser-plasma sources of extreme ultraviolet radiation with a gas jet as the target, the problem of degradation of gas nozzles is topical. Degradation is observed due to insufficient distance from the generation zone of the laser-induced spark to the nozzle exit. The comprehensive solution to this problem is proposed by forming the laser-induced spark in the density jumps that are generated upon deceleration of the supersonic gas jet. In such a density jump, the laser-induced spark is obtained and measurements of emission radiation intensity are performed.
About the authors
A. N. Nechai
Institute for Physics of Microstructures, Russian Academy of Sciences
Author for correspondence.
Email: nechay@ipm.sci-nnov.ru
Russian Federation, Nizhny Novgorod, 603087
A. A. Perekalov
Institute for Physics of Microstructures, Russian Academy of Sciences; Lobachevsky State University of Nizhny Novgorod
Email: nechay@ipm.sci-nnov.ru
Russian Federation, Nizhny Novgorod, 603087; Nizhny Novgorod, 603022
N. I. Chkhalo
Institute for Physics of Microstructures, Russian Academy of Sciences
Email: nechay@ipm.sci-nnov.ru
Russian Federation, Nizhny Novgorod, 603087
N. N. Salashchenko
Institute for Physics of Microstructures, Russian Academy of Sciences
Email: nechay@ipm.sci-nnov.ru
Russian Federation, Nizhny Novgorod, 603087