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Complex Refraction Indices of Expanded Graphite Deduced from Its Reflection Spectra in Infrared Band
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TLDR
In this paper, the complex refractive index of expanded graphite (EG) pellet in the 0.24~2.6 μm and 2.5~25 μm waveband was calculated by Kramers-Kronig(K-K) relation and Bruggeman effective medium theory.Abstract:
The expanded graphite(EG) with good extinction performance can be used as electro-optical passive jamming materials,and its complex refractive index is an important parameter for study on its extinction property.The reflection spectra of EG pellet in the 0.24~2.6 μm and 2.5~25 μm waveband were measured respectively.Based on the measured data,the complex refractive index of EG in the wavelength band 5 to 10 μm were calculated by Kramers-Kronig(K-K) relation and Bruggeman effective medium theory,and calculation errors were analyzed.The results indicate that it is practicable to calculate the complex refractive index of EG based on its reflection spectra data.read more
Citations
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References
More filters
Journal ArticleDOI
Discrimination of viable and dead microbial materials with Fourier transform infrared spectroscopy in 3-5 micrometers.
TL;DR: The method can be used to discriminate the bioactivity of microbes and has potential applications in identification, detection, and optical characteristics of viable and dead microbial materials.
Journal ArticleDOI
Determination of infrared complex refractive index of microbial materials
TL;DR: In this paper, the complex refractive index (CRI) of microbial material was retrieved by using Kramers-Kronig transform and an iterative method on the basis of different reflection spectral extrapolation methods in the infrared.
Journal ArticleDOI
Combined analysis of static and dynamic extinction characteristics of microbial spores and mycelia as a mid-infrared extinction material
TL;DR: In this article, a method via combined static and dynamic analysis extinction performance is presented, combining with the reflection spectra measured by a Nicolet FT-IR spectrometer, and transmittance determined by smoke box test of microbial materials in 3 ∼ 5 μ m.
Journal ArticleDOI
Measurement of complex refractive index of cross-linked polystyrene by reflection spectra
TL;DR: In this article, a new cross-linked polystyrene sample was prepared by a novel method of infrared radiation polymerization, and the reflective spectra were measured by Fourier transform infrared spectroscopy (FTIR).
Proceedings ArticleDOI
Measurement and analysis on optical characteristics of Aspergillus oryzae spores in infrared band
TL;DR: In this paper, the mass extinction coefficient of Aspergillus oryzae spores within the waveband of 3 to 5μm and 8 to 14μm were obtained by utilizing Mie scattering theory, and the results were analyzed and discussed.
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