En/ComplexRI
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Overview
- The complex refractive index is a basic property in the study of light-matter interactions and spectroscopy. Especially in the sum frequency generation (SFG) vibrational spectroscopy studies, the analysis of SFG spectra requires detailed information of the Fresnel factors in the typical three-layer interface model. The dispersion of Fresnel factors in SFG spectra originates from the complex refractive index of the liquid. Studies [1] have shown that the dispersion of the Fresnel factor may become significant and seriously change the analysis results of SFG spectra. However, the complex refractive index in the Infrared region is somehow unavailable for most commonly used liquids in SFG studies. Therefore, we have developed ComplexRI software package to obtain the complex refractive index of any liquids by using the ATR-IR spectra. The output of ComplexRI is the complex refractive index in IR region. Users can specify the target vibrational regions, such as vibrational modes of different functional groups.
Developing history
- The main code of fitting procedure was first developed by Dr. Wang (Tohoku Univ.) in 2019 when he investigated the dispersion of Fresnel factor in electrode/electrolyte interfaces. [1]
- In 2020, Mr. Murata (Tohoku Univ.) in Prof. Morita's lab (Tohoku Univ.) further extended the code and generated a complex refractive index database with about 20 commonly used liquids in SFG studies. 引用エラー:
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- ↑ 1.0 1.1 引用エラー: 無効な
<ref>タグです。「ref1」という名前の注釈に対するテキストが指定されていません - ↑ "Dispersion of Complex Refractive Indices for Intense Vibrational Bands. I Quantitative Spectra" Ryo Murata, Ken-ichi Inoue, Lin Wang, Shen Ye, and Akihiro Morita, J. Phys. Chem. B, 125(34), 9794-9803 (2021).
- ↑ "Dispersion of Complex Refractive Indices for Intense Vibrational Bands. II Implication to Sum Frequency Generation Spectroscopy" Lin Wang, Ryo Murata, Ken-ichi Inoue, Shen Ye, and Akihiro Morita, J. Phys. Chem. B, 125(34), 9804-9810 (2021).