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Title
Japanese: 
English:Quality Evaluation of Polarization Modulation Infrared Reflection Absorption Spectra of a Langmuir Monolayer on Water Dependent on Angle of Incidence and Molecular Orientation 
Author
Japanese: 伊藤 雄樹, 室 麻衣子, 長谷川 健.  
English: Yuuki Itou, Maiko Muro, Takeshi Hasegawa.  
Language English 
Journal/Book name
Japanese: 
English: 
Volume, Number, Page         in press
Published date Nov. 2010 
Publisher
Japanese:Society for Applied Spectroscopy 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Abstract Quality analysis of polarization-modulation infrared reflection absorption spectrometry (PM-IRRAS) for measurements of a Langmuir (L) monolayer film on water is presented. The spectral quality represented by the signal-to-noise ratio is evaluated by taking into account both the band intensity and the electrical signal throughput led out from the FT-IR spectrometer. The product of the two parameters, which is named quality evaluation function, theoretically reveals the optimal angle of incidence for the L film measurements. In addition, the PM-IRRAS-specific surface selection rule with respect to the spectral quality is also presented.

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