1) Inter-trial coherence
序间相干性(ITC)
2) temporal coherence
时间相干性
1.
The influence of light source dimension on spatial coherence and spectrum on temporal coherence was separately discussed by Young s interference experiment.
通过杨氏双缝干涉实验,分别讨论了光源线度对空间相干性的影响和光源频谱对时间相干性的影响,得出光源线度和谱宽与光场相干性之间的关系。
2.
The spatial coherence of expanded light source is due to the correlation between different lightening parts, and the temporal coherence is due to the correlation between the values of a wave at two different times.
空间相干性问题来源于扩展光源不同部分发光的独立性,表现在波场横向相干范围;时间相干性来源于光源发光过程在时间上的断续性,表现在波场的纵向相干范围。
3.
This paper first introduces basic physical quantity of coherence and discusses temporal coherence starting from Michael interfering experiment.
本文给出了描述光场相干性的基本物理量,从迈克尔逊干涉实验出发,讨论了时间相干性;以矩形谱线的光源为例,计算了时间相干度,简要介绍了傅里叶变换光谱学原理。
3) spatial coherence
空间相干性
1.
Effect of atmospheric turbulence on the spatial coherence of quasi-monochromatic Gaussian Schell-model beams propagating in the slant path;
大气湍流对斜程传输准单色高斯-谢尔光束空间相干性的影响
2.
Experimental study of the influence of laser spatial coherence on illumination uniformity;
激光空间相干性对照明均匀性影响的实验研究
3.
Influence of laser spatial coherence on illumination uniformity;
激光空间相干性对照明均匀性的影响
4) time-coherence
时间相干性
1.
Based on the approximate descriptions between the frequency-width Δν and coherent τc time about light source time-coherence by using Newton iterative method, the more precise relations is derived between them.
针对光源时间相干性中频谱线宽Δν与相干时间τc的关系(Δν≈τc)的粗略表达,运用牛顿迭代法对两者的关系进行了较精确的推导,并对其误差及范围进行了讨论。
5) time coherence
时间相干性
1.
An experimental system for investigating the time coherence of light and Fourier transform spectrum analyzing has been built,which can collect the real-time interference signals of various illuminants such as He-Ne laser,natrium lamp and incandescent lamp on Michelson interferometer.
构建了一套改进的光的时间相干性以及傅里叶光谱分析实验系统,该系统利用光机电以及计算机软件编程技术,实时采集以He-Ne激光器、钠光灯和白炽灯为代表的各种光源在迈克耳孙干涉仪上产生的干涉条纹信号,将得到的光信号经光电倍增管转换为电信号进入电路系统,经滤波、A/D转换后,再输送到计算机进行傅里叶变换以及频谱分析。
2.
The mathematical analysis of time coherence of optical waves is carried out from the statistical characteristic of optical field, thus finding out the relation of the corresponding function of time coherence to the quanlity and revealing that the regularity of statistical theory of light is more universal than that of classical theory.
从光场的统计性质出发，对光波的时间相干性进行数学分析，找出和时间相干性对应的函数及量值间的关系，从而揭示出光的统计理论比经典理论具有更普遍的规律性。
6) space coherence
空间相干性
1.
It must be pointed out that space coherence of beam is highly important for light beam quality evaluation.
此外还指出光束的空间相干性在光束空间质量评价中也应重视。
补充资料：相干散射和非相干散射
再辐射的光量子频率和被吸收的光量子频率准确相等的散射过程称为相干散射。在相干散射的情况下，源函数准确地等于平均辐射强度。再辐射的光量子频率和被吸收的光量子频率不相等的散射过程称为非相干散射。在天体物理中，存在一系列因素使散射过程成为非相干散射。主要的因素是：原子的能级有一定的宽度、原子的热运动和湍动以及压力效应等。对于非相干散射，源函数是相当复杂的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条