Suppression of subsidiary fringes in white light interferometry utilizing two-wavelength light source
Suppression of subsidiary fringes in white light interferometry utilizing two-wavelength light source
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DOI：
10.1016/j.optcom.2017.07.029
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发表时间：
2017-11
影响因子：
2.4
通讯作者：
Qi Wang;K. Grattan
中科院分区：
文献类型：
--
作者：
Qi Wang;K. Grattan
本文分析和比较了两种抑制双波长光源白光相关图中辅助条纹的方法。其中一种方法将两个波长分量的强度相加，另一种方法将它们相乘。研究了中心条纹和辅助条纹的峰值强度差。给出了一个快速估算两波长间最佳波长差的数学表达式，以抑制辅助条纹。两个波长分量的强度的影响也进行了研究。
This paper analyzes and compares the two methods for suppressing the subsidiary fringes in white-light correlograms with two-wavelength light source. One of the methods adds the intensities of the two wavelength components and the other multiplies them. Peak intensity difference between the central fringe and the subsidiary fringes is investigated. A mathematical expression for a rapid estimation of the optimum wavelength difference between the two wavelengths is given for suppressing the subsidiary fringes. The effects of the intensities of the two wavelength components have also been investigated.