- Conference date: 22-25 April 2002
- Location: Gatlinburg, Tennessee (USA)
In this work we present temperature diagnostics of an expanding laser‐produced argon plasma. A short‐pulse (35fs) laser with an intensity of I = 1017 W/cm deposits ∼ 100 mJ of energy into argon clusters. This generates a hot plasma filament that develops into a cylindrically expanding shock. We develop spectral diagnostics for the temperatures of the argon plasma in the shock region and the preionized region ahead of the shock. A collisional‐radiative model is applied to explore line intensity ratios derived from Ar II‐Ar IV spectra that are sensitive to temperatures in a few eV range. The results of hydrodynamic simulations are employed to derive a time dependent radiative transport calculation that generates the theoretical emission spectra from the expanding plasma.
- Plasma temperature
- Plasma materials processing
- Plasma diagnostics
- Blast waves
- Collision theories
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