Abstract
Polarization, broadening, and splitting in Fraunhofer-type absorption (FTA) spectra are observed in colinear Double-Pulse Lase-Induced Breakdown Spectroscopy (DP LIBS). Effects are attributable to the Optical Stark Effect (OSE) induced by the electric field of the second laser pulse within the first pulse-created plasma. This effect manifests exclusively in back-directed Laser-Induced Plasma (LIP) emission and during the presence of the second laser pulse. Notably, the OSE is absent in LIBS observations orthogonal to the direction of the laser beams.
Original language | English |
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Article number | 106886 |
Journal | Spectrochimica Acta - Part B Atomic Spectroscopy |
Volume | 214 |
DOIs | |
State | Published - Apr 2024 |
Keywords
- Fraunhofer-type absorption
- Laser-induced breakdown spectroscopy
- Optical stark effect
- Polarization
All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Atomic and Molecular Physics, and Optics
- Instrumentation
- Spectroscopy