Parametric studies on generation of short CO2 laser pulses for IR-laser chemistry
2001
Abstract Results of parametric studies on short CO 2 laser pulse generation by laser induced dielectric breakdown in a plasma shutter cell are described. From the rise time of such short pulses obtained, threshold breakdown intensity ( I th ) has been estimated for different gases. The technique is further extended to obtain 40 ns pulses on two-frequency emission from a single TEA CO 2 laser. Pressure dependent studies of I th are utilised to model the process of such laser induced plasma.
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