A simple model for electron temperature and penetration depth in interaction of ultra-short laser pulses with solid targets

Autor:	Ying Zhang, Yu-xin Nie, Jie Zhang, Shao-hua Pan
Rok vydání:	1997
Předmět:	Acoustics and Ultrasonics Chemistry business.industry Plasma Electron Condensed Matter Physics Thermal conduction Laser Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ion law.invention Optics law Electron temperature Irradiation Atomic physics Penetration depth business
Zdroj:	Journal of Physics D: Applied Physics. 30:655-660
ISSN:	1361-6463 0022-3727
DOI:	10.1088/0022-3727/30/4/021
Popis:	A simple model of plasma heating and electron thermal conduction is proposed to estimate the temporal development of the electron temperature of the plasma during interaction of ultra-short laser pulses with solid targets. Our calculations show that the peak temperature is 894 eV and the penetration depth is about 70 nm for an Al target irradiated by an intense laser pulse (150 fs) for a flux limiter . The calculation indicates that the electron thermal conduction does play a major role and that the effect of the energy loss from electron - ion collisions is much less than that of the electron thermal conduction. Our modelling neglecting hydrodynamic expansion agrees well with experiments and with models that include expansion.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8ee06df2fc346262ddb91dccc7fdf5c8 https://doi.org/10.1088/0022-3727/30/4/021 Zobrazit plný text záznamu