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1)  spectral degree of coherence
光谱相干度
1.
Based on the extended Huygens-Fresnel principle, the expression for the spectral degree of coherence of the partially coherent Hermite-Gaussian (H-G) beams propagating through atmospheric turbulence is derived by using the quadratic approximation of Rytov s phase structure function, and the influence of atmospheric turbulence on the spatial correlation is studied.
基于广义惠更斯-菲涅耳原理,并采用Rytov相位结构函数二次近似,推导出了部分相干厄米-高斯(H-G)光束通过大气湍流传输的光谱相干度公式,研究了湍流对光束的空间相干特性的影响。
2.
It is shown that the spectral degree of coherence and intensity of partially coherent vortex beams depend on topological charges,spatial relative coherence length and refractive index fluctuation et al.
研究表明,部分相干涡旋光束的光谱相干度及光强分布与光束的拓扑电荷数、空间相对相干长度及湍流介质的折射率结构常数等因素有关。
2)  spectral interferometry
光谱相干
3)  Coherent spectroscopy
相干光谱
4)  mean-squared width of the spectral degree of coherence
光谱相干度二阶矩宽度
1.
In addition, it is found that in free space for small a the mean-squared width of the spectral degree of coherence w_c can be either larger or smaller than that of the spectral density w_i depending on ε, and critical value ε_0 increases with increasing α.
此外,在自由空间中,若光束相干参数α较小,随ε的变化光谱相干度二阶矩宽度ω_c可大于或小于其光谱强度二阶矩宽度ω_i,,且临界值ε_0随α的增大而增大;随着α的增大,则无论ε取何值都有ω_c>ω_i。
5)  Femtosecond coherent spectroscopy
fs相干光谱
6)  low-coherence-spectrum
低相干光谱
1.
Analysis of low-coherence-spectrum interferometric system applied to phase error detection of segmented mirror;
用于拼接子镜相位误差检测的低相干光谱干涉系统分析
补充资料:前向相干散射原子光谱分析
分子式:
CAS号:

性质:利用光波的前向相干散散射效应进行多元素分析的光谱技术。原理为光散射具有相长干涉和共振性。前者为前向散射光强度比侧向的高;后者为光频率接近于原子共振频率时,散射增强,而且散射光强度与散射原子数目有关。

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