Study the Impact of Laser Energy on Laser-Induced Copper Plasma Parameters By Spectroscopic Analysis Technique

In this paper, spectroscopic analysis (OES) for copper (Cu) plasma was achieved at atmospheric pressure. Q switched Nd: YAG pulsed laser with a fundamental wavelength (1064 nm), energy range (500-800) mJ, frequency (6 Hz), and pulses (10-30 pulses) applied to induce plasma. Based on the analysis, parameters like electron temperature (Te), density (ne), Debye length (?D), (fp) have been calculated. The results demonstrated that affects all parameters, an (Te) of (0.6820-0.8949) eV number (ne) (13.667-17.235)×1017 cm?3. Also, image place bombardment metal shows three diameters or circles, each circle bears different color from other. It can be described as crater, interaction is obvious by ablation, here effect increased appears during diagnosis process bombardment.