Fiftyyears ago this Sunday, Theodore Maiman and his fellow scientists atHughes Research Laboratory shined a high-power flash lamp on a rubyrod, triggering a beam of coherent light: the first laser.
50年前的这个星期天，休斯研究实验室的西奥多.梅曼和科学家用高功率闪光灯照射红宝石棒，引发光束相干：第一台激光器 。
Based on the propagation law of partially coherent light, spectral changes of a polychromatic Gaussian-Schell model beam propagating in free space is studied.
基于部分相干光的传输定律，研究了多色高斯·谢尔模型光束在自由空间中传输的光谱变化。
It is shown that the atmospheric turbulence gives rise to spectral shift and to beam spreading of spatially partially coherent polychromatic light whether the scaling law is satisfied or not.
结果表明，无论是否满足定标律，大气湍流会引起多色部分空间相干光的光谱移动和光束扩展；多色部分空间相干光光束扩展比多色完全空间相干光受湍流的影响小。
The influence of turbulence on beam spreading of the spatially partially coherent polychromatic light is smaller than that of spatially fully coherent polychromatic light.
多色部分空间相干光光束扩展比多色完全空间相干光受湍流的影响小。
The definitions and the applicability of beam propagation factors for both coherent light and partially coherent light are introduced in detail with examples of some familiar beams.
又介绍部分相干光的传输因子的传统定义，指出其适用范围，并引出部分相干光通过硬边光阑后的传输因子公式。
The new definition of the beam propagation factor for partially coherent light is proposed through the propagation equations of the cross-spectral density.
并依据部分相干光的交叉光谱密度的傍轴传输方程，重新定义了普遍的部分相干光的传输因子。
The effects of optical medium including light beam splitter and reflecting metallic film on laser polarization state in a coherent CO_2 lidar are discussed.
讨论了红外相干激光雷达中光学介质对偏振光束的影响程度，包括光束分束片和反射镜片的影响，给出了定量的结果。
The effects of optical medium including light beam splitter and reflecting metallic film on laser polarization state in a coherent CO_2 lidar are discussed.
讨论了红外相干激光雷达中光学介质对偏振光束的影响程度，包括光束分束片和反射镜片的影响，给出了定量的结果。
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