SEARCH Articles Figures Tables Absorption infrared Absorptivity, infrared Infrared absorption spectroscopy Infrared absorption spectroscopy (IRAS Infrared reflectance spectroscopy Infrared reflectance-absorption Infrared reflectance-absorption spectroscopy Infrared reflection-absorption spectroscopy Infrared reflective Reflectance spectroscopy Reflection infrared spectroscopy Reflection spectroscopy Reflection-absorption infrared Reflection-absorption spectroscopy Reflectivity spectroscopy