beam divergence meaning in English
电子束发散
光束发散度
射束发散
束发散度
Examples
- Using knife - edge method at the focus of a lens to measure the beam divergence of a giant pulse laser output
焦点刀口法测量巨脉冲激光的光束发散角 - A new method is given in this paper , which is used two photo - diode ( pd ) to measure the beam divergence
本文提出了利用双探头直接检测光斑边界点来测量发散角的方法。 - It ’ s been proved by the experiments that detecting apparatus system can be used to detect the laser beam divergence . the detecting results are very close to the given , attain the certain accuracy
实验表明,本文设计的双探头测量激光发散角的装置能够较准确的测量出发散角的大小,测量结果达到了一定的精度。 - At89c52 is selected as the controller of the measurement system . with programming , it realize the controlling of the device movement 、 boundary points determination and calculation and output of the laser beam divergence
测试系统以at89c52为控制核心,实现对机械装置运动的控制、边界点的判断以及发散角的计算和输出。 - The tuning curve of type - i phase matching of bbo opo are measured with accuracy ; the maximum conversation in total of the system is about 31 % at 615 . 6 nm , and it is fitted well with the gtp formula ; in the end we compared the output linewidth and unstable cavity far field beam qua lity of the bbo opo under the condition of type - i phase matching and type - ii phase matching , it is proved that we can obtain the parametric output of linewidth less than 0 . 3 nm and the beam divergence angle approaching diffraction limits by take the advantages of type - ii phase matching and unstable cavity designs
测量了该系统的转换效率最大为31 ，并能与理论公式极好地吻合，最后比较了在类相位匹配条件下和类相位匹配条件下的bbo - opo的输出线宽，以及非稳腔的远场光束质量，实验结果表明，利用类相位匹配以及非摘要稳腔设计可以获得线宽小于0 3nlm 、光束发散角接近衍射极限的参量光输出。