Optical properties of porcine dermis in the mid-infrared absorption band of glucose
| Autor: | Annemarie Pucci, Hans Dieter Tholl, Wolfgang Petrich, Arthur Schönhals, Mathias Glasmacher, Niels Kröger-Lui |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Swine Analytical chemistry Radiation 01 natural sciences Biochemistry Analytical Chemistry law.invention 010309 optics Optics law 0103 physical sciences Electrochemistry Environmental Chemistry Animals Scattering Radiation Absorption (electromagnetic radiation) Spectroscopy Range (particle radiation) Spectroscopy Near-Infrared Scattering business.industry 010401 analytical chemistry Dermis 0104 chemical sciences Wavelength Glucose Absorption band Goniometer Lasers Semiconductor Quantum cascade laser business |
| Zdroj: | The Analyst. 142(8) |
| ISSN: | 1364-5528 |
| Popis: | The optical properties of skin in the mid-infrared range are not known, despite their importance for e.g. non-invasive glucose monitoring. In this paper, transmission, absorption, scattering, and reduced scattering coefficients are quantified using a custom-built goniometer based on a quantum cascade laser operated at the glucose absorption band at a wavelength of around 9.7 μm. The measurements show a strong dominance of absorption and moderate contributions from scattering. The scattered radiation is dominated by single scattering events in the forward direction (g = 0.967) within the range of the investigated dermis layer thicknesses of up to 50 μm, whereby the fraction of multiple scattering is expected to increase with the layer thickness. |
| Databáze: | OpenAIRE |
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