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Updated: Oct 23, 2025

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
Dispersion of Complex Refractive Indices for Intense Vibrational Bands. I. Quantitative Spectra
Ryo Murata1, Ken-Ichi Inoue1, Lin Wang1,2
1Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan.
Abstract:
This paper reviews the dispersion of complex refractive indices for representative intense vibrational bands of organic liquids in the absolute scale. Conspicuous variations in both real and imaginary refractive indices over the intense bands are precisely determined as a function of infrared wavenumber by attenuated total reflection infrared absorption measurement. The accurate spectral data offer an excellent reference to calibrate the absolute infrared intensities by various quantum chemical calculations, and thus, critical comparison between the present experiment and computation was reported to clarify the general accuracy of the quantum chemical calculations. The precise data of the dispersion will be utilized to clarify their impact on the analysis of vibrational spectroscopy of interfaces in the subsequent paper.
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