Late-time particle emission from laser-produced graphite plasma
Creators
- 1. School of Nuclear Engineering, Center for Materials Under Extreme Environment, Purdue University, West Lafayette, Indiana 47907 (United States)
Description
We report a late-time ''fireworks-like'' particle emission from laser-produced graphite plasma during its evolution. Plasmas were produced using graphite targets excited with 1064 nm Nd: yttrium aluminum garnet (YAG) laser in vacuum. The time evolution of graphite plasma was investigated using fast gated imaging and visible emission spectroscopy. The emission dynamics of plasma is rapidly changing with time and the delayed firework-like emission from the graphite target followed a black-body curve. Our studies indicated that such firework-like emission is strongly depended on target material properties and explained due to material spallation caused by overheating the trapped gases through thermal diffusion along the layer structures of graphite.
Additional details
Identifiers
- DOI
- 10.1063/1.3631789;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 110
- Journal Issue
- 5
- Journal Page Range
- p. 053301-053301.5
- ISSN
- 0021-8979
- CODEN
- JAPIAU
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43126446
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- EMISSION SPECTROSCOPY; GRAPHITE; LASER TARGETS; LASER-PRODUCED PLASMA; LAYERS; NEODYMIUM LASERS; PLASMA DIAGNOSTICS; PLASMA HEATING; PLASMA PRODUCTION; THERMAL DIFFUSION; TRAPPING; VISIBLE SPECTRA
- Descriptors DEC
- CARBON; DIFFUSION; ELEMENTS; HEATING; LASERS; MINERALS; NONMETALS; PLASMA; SOLID STATE LASERS; SPECTRA; SPECTROSCOPY; TARGETS
Optional Information
- Notes
- (c) 2011 American Institute of Physics