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- Title
Spectroscopic studies of Ca plasma generated by the fundamental, second, and third harmonics of a Nd:YAG laser.
- Abstract
AbstractThe ablation of calcium sample has been studied by the optical emission spectroscopy of the evolving plasma using the fundamental, second, and third harmonic of a Nd:YAG laser, which reveals numerous transitions due to neutral and singly ionized calcium. The measurements have been performed to determine the electron temperature and electron number density and their spatial behavior. In addition, the behavior of the electron temperature and number density as a function of laser irradiance and ambient gas pressure has been studied. The processes of laser photon absorption in the plasma through inverse bremsstrahlung and photoionization have also been discussed.
- Subjects
NEODYMIUM glass lasers; SPECTRUM analysis; CALCIUM; ELECTRON distribution; PLASMA radiation; PHOTOIONIZATION
- Publication
Laser & Particle Beams, 2008, Vol 26, Issue 1, p41
- ISSN
0263-0346
- Publication type
Article
- DOI
10.1017/S0263034608000062