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METHOD FOR DISPERSIVE FOURIER-TRANSFORM SPECTROMETRY IN CONTINUOUS BROADBAND EMISSION
METHOD FOR DISPERSIVE FOURIER-TRANSFORM SPECTROMETRY IN CONTINUOUS BROADBAND EMISSION
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机译：连续宽带发射中色散傅里叶变换光谱的方法
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摘要
FIELD: physics.;SUBSTANCE: method involves placing on each arm of a double-arm interferometer one identical sealed container with transparent windows, in one of which in the measuring arm a transparent sample of the analysed substance is placed. The container of the reference arm holds a reference body whose thickness is equal to that of the sample, said body being made from a substance whose refraction index n0 monotonously depends on radiation frequency and differs from that of the analysed substance n within the emission band by not more than a value (n-n0)=λmin/a, where a is the distance travelled by radiation in the sample, λmin is the minimum radiation wavelength. Radiation is passed through both containers and a fringe pattern is discretely recorded, said fringe pattern being formed at the output of the interferometer due to variation in difference between optical paths of radiation in the reference and measuring arms according to a given law. The obtained fringe pattern is processed via full Fourier transform.;EFFECT: invention increases accuracy of measurements and widens the range of analysed substances.;1 dwg
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机译：领域：物理;方法：该方法涉及在双臂干涉仪的每个臂上放置一个带有透明窗口的完全相同的密封容器，在该容器的测量臂中放置一个透明的被分析物质样品。参比臂的容器中装有一个参比体，其厚度等于样品的厚度，该参比体由折射率n 0 单调依赖于辐射频率的物质制成，并且与在发射带内分析物质n的值不大于（nn 0 ）=λ min / a，其中a是样品中辐射传播的距离λ min 是最小辐射波长。辐射穿过两个容器，并且条纹图案被离散地记录，所述条纹图案由于参考和测量臂中的辐射的光路之间的差异根据给定定律的变化而在干涉仪的输出处形成。通过完全傅立叶变换处理获得的条纹图案。效果：本发明提高了测量的准确性并拓宽了所分析物质的范围。1dwg
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