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1)  low frequency grating
低频光栅
1.
We have given the principles and illustrations for the manufacture of the high frequency grating and low frequency grating achieved through the parallelogram method and the Michelson method,respectively.
分别介绍高频、低频光栅的制作原理和制作实例,并对制作光栅的质量进行评定。
2)  color separation grating
分频光栅
1.
Analysis on the incidence errors of color separation grating used for ICF;
用于ICF驱动器的分频光栅的入射角误差分析
3)  two-frequency grating
双频光栅
1.
The real-time measurement by two-frequency grating;
关于双频光栅对物体实时测量的研究
2.
Li and Yasuyuki successively proposed two different two-frequency gratings used for three-dimensional surface profilometry.
Li和Yasuyuki先后提出了两种应用于三维面形测量的双频光栅剖面术,这两种双频光栅均是将两种不同频率的条纹模式复合在同一个光栅上,但光栅复用的原理并不相同。
4)  grating frequency
光栅频率
1.
Through theoretic analysis and numerical simulations, it is proved that the optimum thickness of PTR Bragg grating exists, and its diffraction efficiency increases with the decrease of grating frequency and wavelength bandwidth.
通过理论分析和数值仿真,结果表明PTR布拉格光栅存在最佳厚度,并且光栅衍射效率随着光栅频率和组束波长带宽的减小而增大。
2.
In order to increase the number of available fiber lasers,meanwhile guarantee the diffraction efficiency to be at some high level,the grating frequency f should be chosen betwe.
为了增加可参与组束的光纤激光器数目,同时确保较高的光栅衍射效率,应将光栅频率f控制在200~400mm-1,光栅厚度t在1~2mm,理论上可以获得10kW量级的组束激光。
5)  frequency selecting by grating
光栅选频
6)  double-frequency grating
双频光栅
1.
CCD is used in double-frequency grating shearing interferometer to measure the time and space coherence of light field quantitatively and spherical aberration of gradient-index rod lens.
利用双频光栅剪切干涉法 ,CCD摄像机采集剪切干涉条纹图 ,用自行设计的软件对图像进行处理 ,可定量测量光场的时空相干性以及梯度折射率透镜的像
2.
An interferometric technique with double-frequency grating used to measure the thermal lensing of a Ti: sapphire rod pumped with Ar ̄+ laser axially is presented.
报道了用双频光栅剪切干涉术检测钛宝石晶体在Ar ̄+激光器轴向泵浦下的热效应的方法,并给出用这种方法测量钛宝石晶体热透镜焦距随不同泵浦功率变化的实验结果。
补充资料:低频
1.指应用于某一技术领域中的最低频率范围。例如,无线电波段中,将30~300千赫范围内的频率称低频;电子放大电路中,将接近音频(20赫兹~2万赫兹)的频率称为低频。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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