Study on chromatic dispersion of beam splitter in spatially modulated Fourier transform spectrometer

	Study on chromatic dispersion of beam splitter in spatially modulated Fourier transform spectrometer
	Lu J. G.; Liang J. Q.; Liang Z. Z.
	2012
发表期刊	Acta Physica Sinica
ISSN	1000-3290
卷号	61 期号:14
摘要	Due to the chromatic dispersion of beam splitter, the interferogram units from various wavelengths could shift by different offsets, leading to interferogram aliasing in transverse space. Simultaneously, the interferograms of different wavelengths have different offsets of optical path difference, which makes the interferogram aliasing in vertical space. According to geometric optics principles, the transverse aliasing of the interferogram reduces the area of the interferogram unit, and the vertical aliasing of the interferogram leads to a phase-frequency response which could reduce the spectral line intensity. The calculation and the analysis indicate that the transverse aliasing area is only 3.4% of the total area of the interferogram unit in our study, which could be removed in the data processing; and the phase delay from the vertical aliasing of the interferogram is proportional to the thickness difference between the beam splitter and the compensating plate. The maximal thickness difference is provided when the contrast reversion appears in the interference fringe. Finally, we correct the chromatic dispersion from the aliasing interferogram by solving linear equation set, and recover the ideal spectrum.
收录类别	SCI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/34059
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Lu J. G.,Liang J. Q.,Liang Z. Z.. Study on chromatic dispersion of beam splitter in spatially modulated Fourier transform spectrometer[J]. Acta Physica Sinica,2012,61(14).
APA	Lu J. G.,Liang J. Q.,&Liang Z. Z..(2012).Study on chromatic dispersion of beam splitter in spatially modulated Fourier transform spectrometer.Acta Physica Sinica,61(14).
MLA	Lu J. G.,et al."Study on chromatic dispersion of beam splitter in spatially modulated Fourier transform spectrometer".Acta Physica Sinica 61.14(2012).

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