期刊
APPLIED SCIENCES-BASEL
卷 12, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/app12104869
关键词
meteorites; high-power laser; laser ablation; laser-matter interaction; laser-induced plasma
类别
资金
- Czech Science Foundation [21-11366S]
- ERDF/ESF Centre of Advanced Applied Sciences [CZ.02.1.01/0.0/0.0/16_019/0000778]
- Ministry of Education, Youth and Sports of the Czech Republic [LM2015086, LM2018114]
- TACR [TL01000181]
- regional collaboration with the Valasske Mezi.ri.ci observatory [R200402101]
Under controlled laboratory conditions, lasers can mimic the processes of meteoroids during atmospheric entry and have potential applications in space exploration. We summarize the results of laser ablation experiments on meteorite specimens using different laser sources and analyze the differences in ablation spot morphology and their dependence on laser parameters.
Under controlled laboratory conditions, lasers represent a source of energy with well-defined parameters suitable for mimicking phenomena such as ablation, disintegration, and plasma formation processes that take place during the hypervelocity atmospheric entry of meteoroids. Furthermore, lasers have also been proposed for employment in future space exploration and planetary defense in a wide range of potential applications. This highlights the importance of an experimental investigation of lasers' interaction with real samples of interplanetary matter: meteorite specimens. We summarize the results of numerous meteorite laser ablation experiments performed by several laser sources-a femtosecond Ti:Sapphire laser, the multislab ceramic Yb:YAG Bivoj laser, and the iodine laser known as PALS (Prague Asterix Laser System). The differences in the ablation spots' morphology and their dependence on the laser parameters are examined via optical microscopy, scanning electron microscopy, and profilometry in the context of the meteorite properties and the physical characteristics of laser-induced plasma.
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