Fraunhofer-type absorption line splitting and polarization in confocal double-pulse laser induced plasma
作者： Lev Nagli , Michael Gaft
DOI: 10.1016/J.SAB.2013.06.009
关键词: Stark effect 、 Laser power scaling 、 Fraunhofer lines 、 Plasma 、 Absorption spectroscopy 、 Chemistry 、 Laser-induced breakdown spectroscopy 、 Ultrafast laser spectroscopy 、 Optics 、 Laser 、 Atomic physics
摘要: Abstract Strong line splitting and polarization are observed in Fraunhofer-type absorption lines Pb, Sn, Si, Cd, In, Zn confocal double-pulse laser induced plasma (DP-LIP) experiments. This effect is detectable using medium power densities: (~ 1–2) × 10 13 W/m 2 for the first pulse 1 × 10 14 second pulse. Polarization effects exist only during (~ 7 ns). Absorption phenomena may be explained by a high overall magnetic field motional Stark caused inside created
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