光束

Thus, it would be ofimportant significance to study the propagation properties of annular beams.

因此，研究环状光束的传输变换特性具有重要意义。

The transform formula of partially polarized GSM beam in dispersive and absorbing media as well as in anomalously dispersive media is derived.

利用张量方法导出了部分偏振GSM光束在色散吸收介质和负色散介质中的传输公式。

The evolution of the spectrum shows that spectrum splitting and spectral shift occur during the propagation in anomalously dispersive media.

研究结果表明，部分相干GSM光束在负色散介质中传输时会出现光谱分裂和频移现象。

Applying the derived formula, I calculated and analyzed the evolution of polarization degree and intensity of partially polarized GSM beam both in dispersive and absorbing media and in anomalously dispersive media. The spectrum properties of partially polarized GSM beam in anomalously are also discussed.

利用导出的公式，计算分析了部分偏振GSM光束在色散吸收介质以及负色散介质中偏振度和光强的演化特性，同时也分析了它在负色散介质中的光谱特性。

The relationship between transmitter, receiver apex angle, beam divergence, and the value of loss-time delay are simulated by model developed by Luegtten. Energy distributing is elicited in the fixed angles.

该文通过利用Luettgen提出的非视距单散射模型，比较了在不同仰角、光束孔径角情况下，损耗、延时、脉冲半宽展宽的变化特征，并给出了不同传输距离下能量密度的分布情况。

We calculate the field distribution near focus of an aplanatic system for incident ASPBs with different polarization orders and initial azimuthal angles, and based on the simulation results, we find some unique focusing properties of the beams, such as ever on-axis energy null, strong longitudinal field, and flowerlike intensity distribution at focus.

计算了不同偏振级次和偏振初始角的轴对称偏振光束当入射到无球差系统时在焦点附近的场分布，通过这些模拟结果，发现了该光束一些独特的聚焦特性，例如光轴强度始终为零、具有较强的轴向光场以及在焦点附近场呈现花瓣状分布等。

A color management system for use with projection displays includes an image assimilator and an analyzer.

一种用于投射显示器的色彩处理系统，包括例如两个或更多被设置用于接受从对应的图像同化器出射的光束的检偏振器，各图像同化器包括一个透射性面板和一个偏振分束器。

The theoretical analysis and experimental simulation of astigmatic elliptic Gaussian beam .

像散椭球高斯光束的理论分析与实验模拟。

The output radiation from laser diode is highly divergent and astigmatic, because of its existing configuration, which has restricted its applications.

但是固有的结构特点也造成了其光束发散角较大，存在固有像散的缺点，这给实际应用带来了很大的麻烦。

Based on the propagation law of partially coherent light, the spectral changes of Gaussian Schell-model beams passing through an astigmatic aperture lens are studied.

从部分相干光的传输理论出发，研究了高斯-谢尔模型光束通过光阑像散透镜传输轴上的光谱变化规律。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。