High Temperature Reflectance Spectroscopy and Dynamic Reflectance Spectroscopy
The measurement of the radiation reflected from a mat surface constitutes the area of spectroscopy known as diffuse reflectance spectroscopy. The reflected radiation may be in the ultraviolet, visible, or infrared regions of the electromagnetic spectrum, although the first two listed are by far the more widely used at present time. The radiation reflected from a mat surface, RT, consists in general of two components: a regular reflection component (sometimes known as surface- or mirror-reflection), R, and a diffuse reflection component, R∞ (1,2). The former component is due to the reflection at the surface of single crystallites while the latter arises from the radiation penetrating into the interior of the solid and re-emerging to the surface after being scattered numerous times.
KeywordsReflectance Spectrum Reflectance Spectroscopy Thermal Transition Reflectance Curve Peak Minimum
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