TY - JOUR
T1 - Fraunhofer-type absorption line splitting and polarization in confocal double-pulse laser induced plasma
AU - Nagli, Lev
AU - Gaft, Michael
PY - 2013/10/1
Y1 - 2013/10/1
N2 - Strong line splitting and polarization are observed in Fraunhofer-type absorption lines in Pb, Sn, Si, Cd, In, and Zn in confocal double-pulse laser induced plasma (DP-LIP) experiments. This effect is detectable using medium laser power densities: (∼1-2) × 1013 W/m2 for the first laser pulse and 1 × 1014 W/m2 for the second laser pulse. Polarization and splitting effects exist only during the second laser pulse (∼7 ns). Absorption line polarization and splitting phenomena may be explained by a high overall magnetic field and motional Stark effect caused by the second laser pulse inside the laser plasma created by the first pulse.
AB - Strong line splitting and polarization are observed in Fraunhofer-type absorption lines in Pb, Sn, Si, Cd, In, and Zn in confocal double-pulse laser induced plasma (DP-LIP) experiments. This effect is detectable using medium laser power densities: (∼1-2) × 1013 W/m2 for the first laser pulse and 1 × 1014 W/m2 for the second laser pulse. Polarization and splitting effects exist only during the second laser pulse (∼7 ns). Absorption line polarization and splitting phenomena may be explained by a high overall magnetic field and motional Stark effect caused by the second laser pulse inside the laser plasma created by the first pulse.
KW - Fraunhofer lines
KW - Laser-induced breakdown spectroscopy
KW - Polarization
KW - Splitting
UR - http://www.scopus.com/inward/record.url?scp=84893729729&partnerID=8YFLogxK
U2 - 10.1016/j.sab.2013.06.009
DO - 10.1016/j.sab.2013.06.009
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AN - SCOPUS:84893729729
SN - 0584-8547
VL - 88
SP - 127
EP - 135
JO - Spectrochimica Acta - Part B Atomic Spectroscopy
JF - Spectrochimica Acta - Part B Atomic Spectroscopy
ER -