Abstract

Kramers-Kronig analysis is applied to extract complex refractive indices of an isotropic single crystal, ceramics, glasses, and organic materials from their infrared external reflection spectra measured near the normal angle of incidence. It is demonstrated that this technique is versatile and can obtain complex refractive indices of materials. The great advantage of this technique is that a wide variety of materials (organic to inorganic, solid to liquid) can be analyzed and that no prior information is required for the analysis. The calculation procedure of the principal integration in Kramers-Kronig analysis of reflection spectra is also presented.

Kramers–Kronig analysis of infrared reflection spectra with perpendicular polarization

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Complex refractive index of limestone in the visible and infrared

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Measurement of the complex refractive index of isotropic materials with Mueller matrix polarimetry

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Explicit determination of the complex refractive index of an absorbing medium from reflectance measurements at and near normal incidence

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Reconstruction of fiber grating refractive-index profiles from complex Bragg reflection spectra

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