Seminars and workshops of department 27

Several infrared absorption measurements such as molecular orientation, thin films on reflective surfaces and crystal structure studies are enhanced with the use of polarized light. Sequentially collected sample and reference spectra are measured using infrared polarizer accessories. Infrared Reflection Absorption Spectroscopy (IRRAS) uses p-polarized light at a grazing angle of incidence to measure thin films on metallic substrates. The reflectance measurement is done at a grazing angle to increase the polarized absorption from the thin film. Often the absorptions from these samples are...