Plume dynamics of laser produced air plasma

Plume Splitting and Sharpening in Laser-Produced Aluminum Plasma

Plume splitting and sharpening in laser-produced aluminium plasma

Plume splitting and sharpening were observed in laser-produced aluminium plasma created using 532 nm, 8 ns pulses from a frequency doubled Nd : YAG laser. Measurements were made using 2 ns gated fast photography as well as space and time resolved optical emission spectroscopy. The motion of the leading edge of the plume was studied with several background air pressures and the expansion of the ...

Expansion dynamics of laser produced plasma

We consider the applicability of the isentropic, adiabatic gas dynamical model of plume expansion for laser ablation in vacuum. We show that the model can be applied to ionized plumes and estimate the upper electron temperature limit on the applicability of the isentropic approximation. The model predictions are compared with Langmuir ion probe measurements and deposition profiles obtained for ...

Time-resolved optical emission spectroscopy of laser-produced air plasma

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Dynamics of ZnO laser produced plasma in high pressure argon