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Comparison of techniques for overcoming scattering in spectroscopy

机译：克服光谱散射技术的比较

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Light scattering provides a problem in optical spectroscopy as the relationship between attenuation and absorption in the presence of scattering is non-linear. Three simple methods of reducing the effects of scattering are considered in this paper, namely; polarization subtraction, use of an added absorber and spatial filtering. There is an inevitable trade-off between the accuracy of the measurement and the signal to noise ratio as scattered light is rejected from the detector. It is demonstrated that polarization subtraction provides the optimum performance as it enables the relationship between attenuation and absorption coefficient to become more linear at a higher signal to noise ratio than both use of an added absorber and spatial filtering over a range of scattering coefficients.
机译：光散射在光谱中提供了一个问题，因为散射存在在存在下衰减和吸收之间的关系是非线性的。本文考虑了三种简单的降低散射效果的方法，即;偏振减法，使用添加的吸收器和空间滤波。根据探测器拒绝测量的测量准确性和噪声比的信号与噪声比之间存在不可避免的权衡。据证明，偏振减法提供了最佳性能，因为它能够在衰减和吸收系数之间的关系使得在更高的信号中变得更加线性，而不是在一系列散射系数上使用添加的吸收器和空间滤波。

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