偏振光

The concept of geometric phase first introduced by Pancharatnam in his study of interference between light waves in distinct states of polarization and rediscovered by Berry for quantal systems undergoing cyclic adiabatic evolution has been refined and applied during the past years.

几何相的概念首先是由Pancharatnam在研究偏振光干涉时提出来的，Berry在研究做绝热演化的量子体系时发现了Berry绝热相。从此几何相理论引起了人们的普遍重视。

The concept of geometric phase first introduced by Pancharatnam in his study ofinterference between light waves in distinct states of polarization and rediscovered by Berryfor quantal systems undergoing cyclic adiabatic evolution has been refined and applied duringthe past years.

几何相的概念首先是由Pancharatnam在研究偏振光干涉时提出来的，Berry在研究做绝热演化的量子体系时发现了Berry绝热相。

But,studies of polarised light from excited atom is a new reseach field in atomic coliision physics.

由光学仪器产生的偏振光是大家熟悉的，而由离子与原子碰撞产生的激发辐射光的极化，则是新的原子物理研究领域之一。

Using existing observations, the researchers analyzed the polarized light emissions from 25 dense areas within several nebulas that are up to 6500 light-years from Earth.

研究人员利用现有的观测资料，对距地球6500光年以外的几团星云内部中25个高密度区域所释放的偏振光进行了分析。

Using data collected from previous sky surveys, the researchers analyzed the polarized light emissions from 25 dense areas within several molecular clouds, or nebulas, which are up to 6500 light-years from Earth.

使用从以前的天空调查所收集的数据，研究人员分析了来自25多个密集地区分子云内，或星云，这是高达6500光年的距离地球年偏振光排放。

The temporal and spectral behavior of the pulse transmitting in the glass material under different input pulse conditions is studied.

圆偏振光入射时，可以获得更短脉冲宽度的压缩脉冲和更窄的光谱宽度。

Polarized light ; polarizer ; Jones matrix ; quarter wave plate

偏振光；偏光器件； Jones矩阵；四分之一波片

The directions can be obtained by removing the quarter -wave plate a nd following the precedure for plane polarized light or by interpolation.

可将四分之一波片卸去，并按平面偏振光法或内插法来决定其主应力方向。

The properties of the fundamental space-filling mode are analyzed in detail by the PWM, and give a criterion of SPSM PCFs.

在单模单偏振光子晶体光纤方面，提出了一种新型的结构，采用平面波展开法对基空间填充模进行了深入的分析，以此模式为基准判定单模单偏振的区域。

In order to improve the precision, a new system is presented to measure the optical activity based on the theory of polarization interference. The measurement result for a quartz crystal optical activity shows that the relative error is less than one percent and the precision and effeet is improved a lot than the traditional one.

为了提高测量精度，设计了一种利用偏振光干涉法测量物质旋光率的新系统，并对石英晶体旋光性质进行了测定，测量结果的相对误差小于1%，实验证明其测试精度和使用效果都比传统方法有了明显的提高。

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。