Journal of Materials Science, Vol.34, No.3, 615-619, 1999
Determination of laser ablation threshold of Teflon at different harmonics of Nd : YAG laser using photothermal deflection technique
We report the measurement of the laser ablation threshold of Teflon using photothermal beam deflection at 1.06 mu m, 0.532 mu m, and 0.355 mu m irradiation in air. The measured ablation threshold at various wavelengths is used to estimate the absorption coefficient. It is observed that the absorption coefficient increases with a decrease in wavelength.