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 |
|---|---|
| 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
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