Application of a dielectric breakdown induced by high-power lasers for a laboratory simulation of meteor plasma

0561945 - FZÚ 2023 RIV NL eng J - Článek v odborném periodiku
Křivková, A. - Petera, L. - Laitl, V. - Kubelík, Petr - Chatzitheodoridis, E. - Lenža, L. - Koukal, J. - Knížek, A. - Dudžák, Roman - Páclík, D. - Civiš, S. - Krůs, M. - Ferus, M.
Application of a dielectric breakdown induced by high-power lasers for a laboratory simulation of meteor plasma.
Experimental Astronomy. Roč. 51, č. 2 (2021), s. 425-451. ISSN 0922-6435. E-ISSN 1572-9508
Grant CEP: GA MŠMT(CZ) LM2018114
Institucionální podpora: RVO:68378271
Klíčová slova: astrochemistry * spectroscopic techniques * calibration-free LIBS * plasma simulation
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 2.155, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1007/s10686-020-09688-3

Spectra of meteor plasma, their dynamics and dominant spectral features are usually a subject of mathematical modelling and computations. In our study we describe and evaluate the advantages and limitations of the experimental techniques employed for meteor spectra simulations. The experiments are performed by ablating meteorite samples using a series of laser sources, a large terawatt−class gas laser infrastructure PALS, a high-power Ti:Sapphire femtosecond laser, and laboratory Nd:YAG and ArF excimer lasers. We demonstrate that the laboratory experiments may remarkably enhance the qualitative and quantitative evaluation of the meteor emission spectra measured, as well as the assignment of important spectral features therein. We also perform completing experiments to compare the laser-target interaction observed with the expected dynamics of evaporation and disintegration of a real meteoroid body.

Trvalý link: https://hdl.handle.net/11104/0334373