光束半径 meaning in English
beam radius
Examples
- The radiuses of equivalent gaussian beam of different kinds of lasers are studied by using 86 . 5 % loop enclosing power method
摘要利用86 . 5环围功率法研究不同类型的激光器的等效高斯光束半径。 - Under our task experimental condition , we calculated the sensitivity of our planning to develop dial system with direct detection , besides , we studied the relationship between the sensitivity of measurement and atmospheric refractive - index structure constant and applied matlab program simulated the system parameters such as beam diameter , laser divergence angle , detection distance and gained relevant relationship curves
在课题实验条件下，模拟计算了直接检测dial系统的测量灵敏度。在考虑大气折射率结构常数对系统测量灵敏度影响的基础上，并对各种系统参数如光束半径、束散角和探测距离对测量灵敏度的影响运用matlab程序做了仿真计算，为合理选择系统设计参数提供了依据。 - The super resolution effect of sb layer super resolution structure is also investigated with near - field scanning optical microscope . in addition , a rigorous three - dimensional ( 3d ) optical electromagnetic finite - difference time - domain ( fdtd ) model for analysis of a sil system is detailed . in order to accurately analyse sil model , a new method of setting a focused gaussian beam source in fdtd grids is presented
此外，本文还建立了对sil系统光传输特性进行模拟的时域有限差分程序，提出一种在fdtd模拟的离散空间设置会聚高斯光源的新方法，并模拟了会聚高斯光束在sil系统中的传输，研究了sil在不同离焦情况下底面出射光场幅度及光束半径的变化规律，为sil存储系统的优化设计提供了理论依据。 - Starting from maxwell ' s equations , the paraxial propagation equation of intense laser light in ionizing gases is derived and is analyzed by means of the source - dependent expantion ( sde ) method . an equation governing the evolution of the laser beam redius is obtained , based on which we analyze the ionization - modulation ( im ) instability . then , a vectorial , nonparaxial propagation equation is established , and the mechanism of energy loss during the propagation is analyzed
首先从maxwell方程组出发推导出强激光在电离气体中传输的傍轴传输方程，利用源展开方法对傍轴传输方程进行分析，得到光束半径的演化方程，从而讨论传输过程中的电离调制不稳定性；再建立矢量非傍轴模型，并讨论气体电离产生等离子体所引起的激光能量损耗机制。