[16p-P5-1~2] 8.8 Plasma Electronics English Session

▲ [16p-P5-1] Temperature Distribution of Diode Laser Sustained Plasma by Emission Spectroscopy

〇Koji Nishimoto¹, Makoto Matsui¹, Takahiro Ono¹ (1.shizuoka Univ.)

Keywords:high power diode laser, laser sustained plasma, emission spectroscopy

Thermal plasma is widely applied to arc welding, heat source of thermal plasma coating for high melting material such as ceramic, EUV light sources, generation of functional materials, disposal of industrial waste and simulating atmospheric entry. In this study, 1 kW class CW diode laser was used to generate xenon laser sustained plasma. The laser beam was focused on the seed plasma generated by arc discharge in a xenon lump. The pressure condition was 1 MPa and the minimum laser power was 526±4 W. In this study, temperature distribution of the plasma is measured and the result is presented.