SEARCH Articles Figures Tables Modulation spectroscopy Polarization modulated IR reflection absorption spectroscopy Polarization modulated infrared reflection absorption spectroscopy Polarization modulation infrared reflection absorption spectroscopy Polarization-Modulation Infrared Reflection-Absorption Spectroscopy (PM-IRRAS) Polarization-modulated FTIR reflection absorption spectroscopy Polarization-modulation IR reflection absorption spectroscopy