低频波 meaning in English
low frequency wave
Examples
- The effect of vertical shear of basic flow on low - frequency waves in tropics
基本气流的垂直切变作用下的低纬低频波 - A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it . some results have been summarized as follows : l . according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront , the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied
本论文在激光光束波前畸变检测和控制上进行了新的探索，主要就空间相位调制环路径向剪切干涉仪以及它对波前畸变的检测和液晶空间光调制器及其对中频段波前畸变的控制进行了研究，其研究的内容和取得的成果如下：一、根据标量衍射理论，结合低频波前畸变的高斯随机位相分布模型，研究了不同均方根梯度低频畸变波前对激光光束焦斑聚焦性的影响，并采用描述中频段波前畸变的功率谱密度概念，模拟计算了它对激光焦斑旁瓣的贡献。 - 5 . otherwise , the applicability of cube comer array in the wide spectrum high power solid - state laser facility was researched as a relatively absolute part in this paper . through simulation , the action of cube corner array to reduce beam ' s focal spot size was testified visibly , and the smoothing effect of beam ' s modulation caused by cube corner array was proved primarily on the wide spectrum condition
另外，作为一部分相对独立的内容，本文对宽频带激光传输条件下采用角锥棱镜阵列抑制低频波前畸变的设想进行了探索性的研究，通过仿真模拟验证了角锥棱镜阵列具有抑制低频波前畸变、提高激光焦斑能量集中度的显著作用，并初步验证了宽频带激光传输条件下近场振幅高频调制的匀滑效应。