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Investigation of dynamics of laser-produced carbon plasma during the laser irradiation using collective Thomson scattering by Yiming Pan; Kentaro Tomita; Yukihiko Yamagata; Atsushi Sunahara; Katsunobu Nishihara is a Engineering article available to read on EtoBox.
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## Abstract Plasma temperature, density, and flow velocity are the critical physical properties of laser produced plasma (LPP) to reveal the ablation dynamics, energy transport, and hydrodynamic evolution. In the time window during and just after laser irradiation, experimental data are very scarce so that many theoretical models remain untested. Here we report a clear evolution history of LPP expansion dynamics within 0–14 ns after the laser peak and in a region very close to the target (0.13–0.6 mm). A table-top Nd:YAG laser (intensity 6 × 10^9^ W cm^−2^, pulse 7 ns) was used to generate the LPP from a planar graphite target, whose width was arranged to be smaller than the laser spot diameter to produce a one-dimensional planar expansion plasma near the target. The electron density ( CDATA ${n\_e}$? n e ), temperature ( CDATA ${T\_e}$? T e ), and drift velocity ( CDATA ${V\_d}$? V d ) in the LPPs were measured using the ion feature of collective Thomson scattering, providing a space- and time-resolved 2D profile of the LPP. The experimental observations made it possible for the expansion dynamics to be compared directly with the LPP expansion models. The results suggest that duri
Who reads Investigation of dynamics of laser-produced carbon plasma during the laser irradiation using collective Thomson scattering?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Yiming Pan; Kentaro Tomita; Yukihiko Yamagata; Atsushi Sunahara; Katsunobu Nishihara
- Publisher
- IOP Publishing
- Published
- 2022
- Language
- EN
- Field
- Engineering (Physical Sciences)