Diagnostics of zinc selenite plasma produced by FHG of a Q-switchedND: YAGlaser.

We presented the OES studies of the Zinc Selenite ZnSe plasma produced by the FHG (1064nm) of a Q-switched ND: YAG laser. The target material was placed in front of laser beam in air at atmospheric pressure. the experimentally observed line profiles of zinc (ZnI) have been used to extract the Te using the Boltzmann plot method. Whereas, the ne has been determined from the Stark broadening method using the Zinc (Zn I) line. And it is calculated ωp, λd and Nd. The Te is calculated by varying the laser energy at (100, 200, 300, 400 and 500) mJ. It is observed that Te, ne and ωp increases as laser energy is increased while λd and Nd decreases as laser energy increased. [ABSTRACT FROM AUTHOR]