当前位置: X-MOL 学术Quantum Electron. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effect of CO2-laser power density on the absorption coefficient of polycrystalline CVD diamonds
Quantum Electronics Pub Date : 2020-12-09 , DOI: 10.1070/qel17423
M.S. Andreeva 1 , N.V. Artyushkin 2 , M.I. Krymskii 2 , A.I. Laptev 2 , N.I. Polushin 2 , V.E. Rogalin 3 , M.V. Rogozhin 2
Affiliation  

The effect of 1-s irradiation of an uncooled polycrystalline CVD diamond plate by a focused cw CO2 laser beam with a power density of 300 – 800 kW cm−2 is investigated. The absorption coefficient of the sample at a power density of 800 kW cm−2 is found to be 0.035 cm−1 larger as compared with that at 300 kW cm−2, which is related to the temperature dependence of its phonon-induced absorption with a change in temperature from 44 to 100 C. It is shown that polycrystalline diamond, in contrast to other optical materials, does not exhibit nonlinear (avalanche-like) rise in absorption at high CO2-laser power densities, at least up to 800 kW cm−2.



中文翻译:

CO2激光功率密度对多晶CVD金刚石吸收系数的影响

研究了功率密度为 300 – 800 kW cm -2的聚焦 cw CO 2激光束对未冷却多晶 CVD 金刚石板的 1 秒辐照效果。发现在 800 kW cm -2的功率密度下样品的吸收系数比在 300 kW cm -2时的吸收系数大0.035 cm -1,这与其声子诱导吸收的温度依赖性有关温度从 44 到 100 摄氏度的变化。结果表明,与其他光学材料相比,多晶金刚石在高 CO 2激光功率密度(至少高达 800千瓦厘米-2

更新日期:2020-12-09
down
wechat
bug