Normally a CMB photon is first blueshifted (its peak shifts towards the blue end of the spectrum) when it enters the supercluster and then redshifted as it leaves, so that the two effects cancel.
通常来说，宇宙微波背景辐射粒子先发生了蓝移（它们的峰向光谱的蓝端移动），但当它进入超星系团之后又发生了红移。 这两个效果相互抵消。
By using the concept of "coherence area", we standardized three familiar statements about the spatial coherence criterion on a photon correlation spectrum measurement system.
利用相干面积概念对光子相关谱测量系统空间相干性判据的几种常见表述进行了规范。
Using a simplified model of light interference, we discussed the physical essence of the spatial coherence demand on a photon correlation spectrum measurement system in dynamic light scattering.
利用光干涉的简化模型讨论了动态光散射中光子相关谱测量系统的空间相干性要求的物理本质。
Raman spectrum is a kind of molecule scattering spectroscopy, which is characterized by the frequency excursion that caused by interactions of molecule and photon to show the information of molecule.
拉曼光谱是一种分子散射光谱，通过与分子相互作用的光子产生的表征分子振动或转动能级差的特征频移，来反映分子结构或成分的信息。
Then the influence on the average power spectrum and bispectrum of specklegrams caused by the photon noise, additive noise and more complex noises of other kinds in the detecting system .
介绍了所用的二维光子计数斑点像探测系统的性能，分析了探测系统的光子噪声、附加噪声和其它更复杂的噪声对斑点图的平均功率谱和重谱的影响。
A new signal-to-noise ratio criterion-speckle criterion for photon correlation spectrum was established by use of the statistical method, and its physical significance analyzed.
利用统计方法重建了光子相关谱信噪比的散斑判据，并分析了散斑判据的物理意义。
The actual signal-to-noise ratio criterion of photon correlation spectrum, its building-up process and its shortages were summarized.
概述了现行的光子相关谱信噪比判据、建立过程及其不足。
Then, we extend the method to the calculation of resonance fluorescence spectrum with two-photon transition. The results exhibit characteristics different from the one-photon transition.
然后，推广这种方法到双光子跃迁的共振荧光谱计算，获得了与单光子跃迁不同的结果。
The paper analytically discusses two factors, the spectrum of photon and the scattered radiation by the detector, which affect the attenuation efficient of the object in flash X-ray radiography.
研究闪光照相中影响材料有效吸收系数的两个主要因素，即X光的能谱效应和散射影响。
Firstly, the photon correlation spectroscopic theory and the scattering spectrum estimation of dynamic light scattering measurement were introduced.
首先，介绍了动态光散射测量法涉及的光子相关光谱理论和散射光谱估计理论。
So people have paid many attentions to the research of energy spectrum hardening and the photon scattering.
因而关于射线的能谱硬化和散射研究工作，成为人们广泛关注的课题。
Moreover the question of the energy spectrum hardening and the photon scattering is one of important bottleneck to restrict the improvement of ict.
而其中射线的能谱硬化和散射问题，又是制约工业CT各项性能指标提高的重要瓶颈之一。
The high resolution spectrum can be obtained through many methods, such as saturated absorption spectroscopy, Doppler free methods of two-photon spectroscopy, and etc.
提高热原子光谱的分辨率可以有许多方法，如饱和吸收光谱技术、双光子光谱的消多普勒技术等。
The emission spectrum for a pair of dipole dipole coupled identical two level atoms interacting with three mode cavity fields resonantly through 6 photon process has been studied.
研究了两个偶极偶极力关联的等同双能级原子与三模腔场六光子共振相互作用的辐射谱。
The emission spectrum for a pair of dipole dipole coupled identical two level atoms interacting with three mode cavity fields resonantly through 6 photon process has been studied.
研究了两个偶极偶极力关联的等同双能级原子与三模腔场六光子共振相互作用的辐射谱。
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