光束发散角 meaning in Chinese
beam divergence angle
beam-divergence angle
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 - If a nd : yag laser runs at high pump power , laser resonator will generate multimode beam due to thermal lens of active rod . the higher pump power is , the bigger divergence occurs and the smaller rayleigh range is
当nd ： yag激光器工作在高泵浦功率下时，由于nd ： yag激光器工作物质的热透镜效应导致了谐振腔输出多模激光，随着泵浦功率的升高激光光束发散角增大，焦深减小。 - 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。