Statistical investigation of plasma temperature in laser-air interactionusing shadowing method

Shadowing is one of the common methods in measuring, expanding and moving particles in the laboratoryenvironment. In this article, the plasma wave front is measured using the shadowing method, which isconsidered an optical method. due to the dynamic behavior of plasma. We measure the average temperatureof particles using the hydrodynamic equations of particles. In this research, two solid-state Nd:YAG laserswere used, the first one with a wavelength of ۱۰۶۴ nm, a pulse width of ۱۸ nanoseconds, and an energy of۱۴۰ mJ was used for interaction and ablation. The second laser is the second harmonic of the Nd:YAG laser,which is called a probe laser. This laser with a wavelength of ۵۳۲ nm is used to illuminate the environment.We measure laser plasma temperature in air environment by shadowing method

Keywords:

Laser plasma , shadowgraphy , plasma temperature and density