根据衍射光学理论分析了红外系统后向反射光强的分布。
According to the theory of diffraction, the intensity distribution of laser reflected from infrared system is analyzed.
通过测量后向反射波与入射波的强度比，可以确定介质的三阶极化率。
Third-order susceptibility has been determined by the ratio of the input probing beam in tensity to the backward wave intensity in four-wave mixing.
本文报道在叶绿素溶液中用简并的四波混频得到位相复共轭后向反射波的首次实验。
In this paper, the first experiment of generating the phase conjugated backward wave by degenerate four-wave mixing in chlorophyll solution is reported.
为了隔离后向反射激光以及激光器多程放大系统中的寄生振荡，需要研制一种大口径的电光开关。
To isolate the retroreflections from the target and the self-oscillation in multipass amplifier system, the large-aperture electro-optical switch is required.
研究了近共振增强的四能级系统有机染料溶液中简并的四波混频后向反射波及前向波的位相复共轭特性。
Phase conjugation of backward-and forward-wave produced by degenerate four-wave mixing using a nearly resonantly enhanced nonlinearity in four-level organic dye solutions was investigated.
GPS35卫星是全球定位系统卫星星座中的一颗卫星，它的对地一侧安装了激光后向反射器，可实施激光测距观测。
GPS35 satellite is one of the constellations of the Global Position System, it was equipped with laser retrorefractors toward the earth and can be observed with SLR.
通过对等效照明面积的分析，给出了能计算任意平面形状、有遮挡效应的二面角反射器后向雷达散射截面的工程方法。
Through the analysis of EIA, a modified computational method is given, which can analyze a dihedral corner reflector with arbitrary shape of planes and with shadow objects.
在考虑水表内反射和水体后向散射的基础上，推导出平静水面下的漫反射率公式。
A diffuse reflectivity formula is set with the internal reflectance in water surface and backscattering of water-body being considered.
用光线矩阵方法推导了光纤-自聚焦棒-反射器在共轴耦合情况下的后向耦合系数；
The expression of retroooupling coefficient of fiber-GRIN rod-reflector in coaxial coupling is derived by ray-matrix method.
文章分析了调制脉冲激光雷达探测信号水下传输模型，研究了海水后向散射信号以及目标反射信号的频域特性。
The article analyses the seawater transport model of the modulated-pulse LIDAR signal, and the frequency characteristic of the seawater backscattering signal and target reflecting signal are studied.
系统内设计了一对正交反射镜，用以减小系统中器件后向散射光的影响。
A pair of orthogonal mirrors were mounted in the system to minimize the influence of back-scattering light from some other components in the system.
系统内设计了一对正交反射镜，用以减小系统中器件后向散射光的影响。
A pair of orthogonal mirrors were mounted in the system to minimize the influence of back-scattering light from some other components in the system.
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