偏振片

Then according to the cascade of IPS and LPS, the multi-stage rearrangeable nonblocking Omega network was introduced. Moreover, the method of bipartition graph was adopted to ascertain the node state of each stage. At last, a module of the rearrangeable nonblocking Omega network, which was integrated with polarizing beam-splitter,λ/2 wave plate and perfect shuffle Plates, was constructed.

该方法通过逆混洗(Inverse Perfect Shuffle， IPS)和左混洗(Lott Perfect Shuffle， LPS)的串联，构成多级的可重排、无阻塞的Omega网络，采用二分图法依次确定各级节点开关的状态，最后通过偏振分光棱镜(Polarizing Beam Splitter， PBS)、半波片(λ/2 wave plate)和PS Plate的组合，得到可重排、无阻塞的Omega网络交换模块。

A cat's eye with its holder construction has been designed and applied to the system. Through defining the acceptance angle and the entrance angle of the cat's eye, its reflective characteristic has been analyzed under the condition of practical application.

偏振分光镜、猫眼、波片及调整误差是引起光能损失、导致干涉光强下降的重要原因，通过选用高精度石英λ/4波片、光信号采样用平板玻璃分光镜及镀增透膜等措施，使光能损失大大减小。

This paper analyses how the electricity vector orientation of the normal incidence plane polarized light or garden polarization light is altered by quarter wave plate by making use of Jones matrix of polarizer.

用坐标变换法解出偏振器件一般情况下的Jones矩阵，利用偏振器件的Jones矩阵分析四分之一波片对正入射平面偏振光和园偏振光的偏振态的改变，指出获得和判断椭园和园偏振光的方法。

For a polarimetry experiment!i.e.the measurement of the polarisation state of light,two optical elements are required acting as a phase retarder and a linear polariser,respectively.

对于偏振实验，即对光的偏振态测量来说，需要两个光学元件分别起相位片和检偏器作用。

The phenomena of polarization separation and its relationship to the effective refractive index of...

分析了偏振分离现象出现的原因和其与滤光片等效折射率的关系，提出了消除偏振分离现象的方法。

With the polarization-resolved transmission spectrum curve, the phase retardation of quartz wave plate can be determined at a wide spectral range from 200 to 2000 nm obviously.

由某一波片的偏振分辨透射率光谱曲线可以确定出该波片在光谱范围从200-2000nm之间任意波长处的延迟量。

Plate and λ/2 plate were placed inside the Nd∶YVO4KTP green laser cavity with angle 90°between their fast axis.The composite plate composed of HWP,QWP and KTP has the function of QWP.The composite plate with Nd∶YVO4 can effectively suppress the coupling of polarized modes,and multi-longitudinal-mode lownoise green laser was obtained.Since the composite plate counteracted the phase shift induced by temperature sensitivity of quartz plate,the green laser operated with lownoise reliability in different output power and different operation temperature.The threelongitudinalmode, the noise of less than 0.5% and output power stability of less then 1% for 12 hour are obtained in the green laser.

介绍了一种LD泵浦腔内倍频全固体Nd∶YVO4KTP多纵模、低噪音、高功率稳定绿激光器在Nd∶YVO4KTP绿激光器组成的谐振腔内放置厚度约相等的石英晶体λ2波片和λ4波片，使两波片快轴夹角互呈90°，HWP、QWP与KTP构成复合波片，其作用相当于QWP，此复合波法与各相异性Nd∶YVO4共同作用有效抑制了腔内偏振模耦合，获得多纵模低噪音绿光输出此复合波片相互作用由于抵消了石英晶体波片温度敏感引起的相位延迟量漂移，所以此激光器在不同功率、不同工作温度下，均能稳定可靠地运转于低噪音状态实验结果为，绿光输出纵模数为3个，噪音小于0.5%，12 h功率稳定性优小于1

The result shows that the new type double pass polarization interference filter has better spectral characteristics in practice can reduce the number of retarders , and is expected to be used extensive.

结果表明，新型双通偏振干涉滤光片不仅具有更好的光谱特性，而且能进一步减少延迟片数目，具有非常重要的实用价值，可望在基于硅片的液晶投影仪分/合色系统中得到广泛应用。

The system is based on optical heterodyne structure, and use half wave plate, quarter wave plate and polarization beam splitter to improve the intensity of Doppler signal and signal-noise-ratio.

系统采用了外差式纵向激光多普勒测量结构，利用1/2波片、1/4波片与偏振分光棱镜相结合及外差式参考光结构，有效地提高了多普勒信号的强度与信噪比。

In order to compensate the depolarization effects of optical component such as the dichroic mirror, we used the combination of a half-wave plate and a quarter-wave plate to rotate the polarization angle of the laser incident on the sample.

因此，我们使用了二分之一波长片及四分之一波长片来弥补这种效应，同时也藉此旋转雷射的偏振角度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。