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光谱密度
spectral concentration
- 进一步又讨论了噪声的关联时间对原子激光谱密度的影响。
Effects of the correlation time of noises on the spectral density also are discussed. - 并依据部分相干光的交叉光谱密度的傍轴传输方程，重新定义了普遍的部分相干光的传输因子。
The new definition of the beam propagation factor for partially coherent light is proposed through the propagation equations of the cross-spectral density. - 拉曼光谱的工作原理是使用一束激光照射到原子上，然后收集并分析产生的散射光的波长和密度。
Raman spectroscopy works by shining a laser light onto a molecule and then collecting and analysing the wavelength and intensity of the resulting scattered light.
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