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Measurements of refractive indices and thermo-optical coefficients using a white-light Michelson interferometer

机译:使用迈克尔逊白光干涉仪测量折射率和热光学系数

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A dispersive white-light Michelson interferometer was used to determine the wavelength dependence of the refractive index (n) in the visible range from 425 to 775 nm and the thermo-optical coefficient (dn/dT) of fused silica (FS) and borosilicate glass (BK7). For FS, the values obtained for n and dn/dT at 546 nm were 1.46079 and 11.3 x 10(-6) K-1, respectively, while the values for BK7 glass were 1.51825 and 2.2 x 10(-6) K-1, respectively, which is in good agreement with the literature. The accuracy of the methodology used for n was almost 10(,)(-6) enabling precise spectroscopic characterization of materials across a wide spectral range. (C) 2016 Optical Society of America
机译:使用分散的白光迈克尔逊干涉仪确定在425至775 nm可见范围内的折射率(n)的波长依赖性以及熔融石英(FS)和硼硅酸盐玻璃的热光学系数(dn / dT) (BK7)。对于FS,在546 nm处获得的n和dn / dT值分别为1.46079和11.3 x 10(-6)K-1,而BK7玻璃的值分别为1.51825和2.2 x 10(-6)K-1分别与文献相吻合。用于n的方法的准确性几乎为10(,)(-6),可在宽光谱范围内对材料进行精确的光谱表征。 (C)2016美国眼镜学会

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