SEARCH Articles Figures Tables Absorption infrared Absorption spectra near-infrared, vibrational-rotational Absorptivity, infrared Infrared absorption, vibrational modes Molecular vibrations infrared absorption Surface vibrational spectroscopy reflection-absorption infrared spectra Vibrational Spectroscopy. Infrared Absorption. Raman Spectra Vibrational absorption Vibrational infrared Vibrational spectroscopy infrared absorption Vibrational state, infrared energy absorption