现代应用物理2016，Vol.7Issue(2)：020302-1-020302-7,7.
利用石英晶体微天平测量激光参数的实验研究
Experimental Study on Measurement of Laser Parameter with Quartz Crystal Microbalance
摘要
Abstract
A QCM(quartz crystal microbalance) system for measuring the parameters of high power laser is built up and tested under the irradiation of short-time(25 ms to 2 s)and long-time(>20 s) laser.The experimental results on the quartz crystal indicate that the reso-nance frequency will first rise linearly,and then to a steady value under the irradiation.Dur-ing the rising period,the frequency increment is proportional to the laser energy.When it reaches the steady state on long-time irradiation,the incremental frequency compared to that front-end irradiation is proportional to the laser power.The laser energy that the QCM can endure is less than 7 mJ and the laser power that the QCM can measure is less than 80 mW. The power density that the QCM can endure is up to 2 .3 kW·cm-2 ,while the irradiation time can be up to 60 s.Therefore,it is concluded that the variation of the resonance frequen-cy of the QCM irradiated by the laser is due to the change of the inner temperature field and stress field.关键词
实验研究/激光参数测量/石英晶体微天平Key words
experimental study/laser parameter measurement/quartz crystal microbalance分类
信息技术与安全科学引用本文复制引用
冯刚,陈绍武,刘卫平,王平,闫燕..利用石英晶体微天平测量激光参数的实验研究[J].现代应用物理,2016,7(2):020302-1-020302-7,7.基金项目
激光与物质相互作用国家重点实验室基金资助项目(SKLLIM1301Z) （SKLLIM1301Z）
