Comparison of plasma temperature and electron density on nanosecond laser ablation of Cu and nano-Cu

Journal Article · Sun Mar 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4913987· OSTI ID:22408248

Chen, Anmin; Jiang, Yuanfei ^[1]; Wang, Tingfeng; Shao, Junfeng ^[2]; Jin, Mingxing ^[1]

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1. Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012 (China)
2. State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033 (China)

Laser-induced breakdown spectroscopy is performed through the collection of spectra by spectral detection equipment at different delay times and distances from targets composed of Cu and nano-Cu, which are ablated using a Nd:YAG laser (532 nm, 10 ns, 10 Hz) in our experiments. The measured wavelength range is from 475 nm to 525 nm. Using the local thermodynamic equilibrium model, we analyze the characteristics of the plasma temperature and the electron number density for different distances between the target surface and the lens. The results show that when compared with the nano-Cu plasma case, the temperature of the Cu plasma is higher, while its electron number density is lower.

• OSTI ID: 22408248
• Journal Information: Physics of Plasmas, Vol. 22, Issue 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABLATION
COPPER
DISTANCE
ELECTRON DENSITY
ELECTRON TEMPERATURE
ION TEMPERATURE
LASER TARGETS
LENSES
LTE
NANOPARTICLES
NEODYMIUM LASERS
SPECTRA
SPECTROSCOPY
SURFACES
TIME DELAY