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11 April 2024 The role of laser wavelength on the early-stage electron density evolution in laser-produced plasma
Mathew P. Polek, Farhat N. Beg, Sivanandan S. Harilal
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Proceedings Volume 12939, High-Power Laser Ablation VIII; 1293912 (2024) https://doi.org/10.1117/12.3016463
Event: SPIE High-Power Laser Ablation, 2024, Santa Fe, New Mexico, United States
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Abstract
This study compares the role of laser wavelength on the early time electron density evolution of the plasma following laser ablation using Nomarski interferometry. The laser-produced plasma was generated by focusing fundamental (1064 nm), second (532 nm), and fourth (266 nm) harmonic radiation from a 6 ns Nd:YAG laser at a laser intensity of 10 GW/cm2 onto a copper target placed in vacuum. The dependence of plasma properties such as the electron density distribution, plume velocity, and plume morphology on the laser wavelength are discussed.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Mathew P. Polek, Farhat N. Beg, and Sivanandan S. Harilal "The role of laser wavelength on the early-stage electron density evolution in laser-produced plasma", Proc. SPIE 12939, High-Power Laser Ablation VIII, 1293912 (11 April 2024); https://doi.org/10.1117/12.3016463
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KEYWORDS
Plasma
Laser interferometry
Laser ablation
Interferograms
Nd:YAG lasers
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