Argon-Xenon Laser-Sustained Plasma Using 1-kW Diode Laser

Argon-xenon laser-sustained plasma (LSP) was generated using a 1-kW class diode laser. At a total pressure of 1 MPa, the threshold laser power of the xenon-argon LSP was higher than that of the pure xenon LSP, whereas the former was lower than the latter at a total pressure of 0.1 MPa because of homonuclear associative ionization effect. The minimum xenon pressure ratio at which LSP could be generated was 7.67% at a total filled pressure of 3 MPa. The maximum value of fractional absorption was 37.7% at a total filled pressure of 0.5 MPa.