The modeling of thermal lens process of glycerol and experimental investigation of thethermal diffusivity of glycerol

By Using laser thermal lens spectroscopy, some thermo-optical parameters of materials such asthermal diffusivity with high accuracy can be measured. In this study, the laser thermal lens setup was firstarranged. In this system, the second harmonic of the Nd:YAG laser was used. Based on this setup, the thermaldiffusivity for glycerol was experimentally measured. The obtained experimental results were compared withthe reference results and agreed with them. Then this experiment was simulated by using Comsol software.The results of this simulation showed well the thermal lens process of glycerol under laser irradiation with awavelength of ۵۳۲ nm with an external energy range of ۱۰۰ mJ.

کلیدواژه ها:

Thermal Lens Spectroscopy ، Thermal Diffusivity ، Simulation