Numerical investigation of the plasma formation in air generated by 355 nm Nd:YAG laser pulses
| Autor: | Konstantinos Kaleris, Ivan Petrovic, Violeta M. Petrović, Hristina S. Delibašić |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Electron density
Materials science Pulse duration laser-induced breakdown free electron density numerical calculation 02 engineering and technology Rate equation 021001 nanoscience & nanotechnology Laser 01 natural sciences law.invention 010101 applied mathematics Wavelength law Nd:YAG laser Ionization lcsh:Q 0101 mathematics Diffusion (business) Atomic physics 0210 nano-technology lcsh:Science |
| Zdroj: | Kragujevac Journal of Science, Vol 2020, Iss 42, Pp 19-28 (2020) Kragujevac Journal of Science (2020) (42):19-28 |
| ISSN: | 2466-5509 1450-9636 |
| Popis: | In the present work, a numerical analysis is performed to investigate the comparative contribution of the mechanisms responsible for electron gain and losses in laser-induced breakdown. In this regard, we adopted a simple theoretical formulation relying on the numerical solution of a rate equation that describes the growth of the electron density due to the joined effect of multiphoton and cascade ionization processes. The rate equation also includes the effect of electron loss due to diffusion, attachment and recombination processes. The analysis considered atmospheric air irradiated by a Nd:YAG laser radiation at a wavelength of 355 nm with 5 ns pulse duration full-width half-maximum (FWHM). |
| Databáze: | OpenAIRE |
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