High power double discharge type TEA CO
2 laser was used to study laser plasma interaction on laser produced carbon target plasma and plasma Focus device. The maximum output power was 0.3 GW and full width at half maximum intensity was 100ns.
We measured the reflectivity of the laser light at 10.6μm in wavelength from the laser produced carbon plasma. The reflectivity showed a maximum (≈56%) at the laser power intensity of about 1.1 × 10
10W/cm
2, and at above this value, the reflectivity decreased. The absorption was introduced effectively above this intensity. The electron density and temperature were also measured.
Heating of Plasma Focus by TEA CO
2 Laser Light was also investigated near critical density region of Plasma Focus for 10.6μm TEA CO
2 Laser Light. Preliminary experiment shows enhancement of X-ray emission with irradiation TEA CO
2 Laser Light to focus plasma.
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