摘要The thermal effect on the laser transition at 946 nm is investigated. The temperature of the cooling system is verified in the range 2-60°C. A Nd:YAG laser crystal is utilized as a gain medium and is pumped by a newly developed flashlamp. The variable pumping energy is accomplished within the 5-40 J range. The stimulated emission cross section of the 946-nm line is estimated based on the fluorescence spectrum of the Nd:YAG laser. The stimulated emission cross section of the 946-nm line is found to be inversely proportional to the temperature and to the input energy due to the increase of the thermal population at the ground level.
Abstract：The thermal effect on the laser transition at 946 nm is investigated. The temperature of the cooling system is verified in the range 2-60°C. A Nd:YAG laser crystal is utilized as a gain medium and is pumped by a newly developed flashlamp. The variable pumping energy is accomplished within the 5-40 J range. The stimulated emission cross section of the 946-nm line is estimated based on the fluorescence spectrum of the Nd:YAG laser. The stimulated emission cross section of the 946-nm line is found to be inversely proportional to the temperature and to the input energy due to the increase of the thermal population at the ground level.
Seyed Ebrahim Pourmand, Noriah Bidin**, Hazri Bakhtiar. Temperature and Input Energy Dependence of the 946-nm Stimulated Emission Cross Section of Nd3+:YAG Pumped by a Flashlamp[J]. 中国物理快报, 2012, 29(3): 34206-034206.
Seyed Ebrahim Pourmand, Noriah Bidin, Hazri Bakhtiar. Temperature and Input Energy Dependence of the 946-nm Stimulated Emission Cross Section of Nd3+:YAG Pumped by a Flashlamp. Chin. Phys. Lett., 2012, 29(3): 34206-034206.
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