Spectroscopy IR reflection absorption

Reflection-Absorption IR spectroscopy (RAIRS) where the linearly polarized IR beam is specularly reflected from the front face of a highly reflective sample, such as a metal single crystal surface (Figure 3.1(a)). This is also sometimes referred to as IRAS (IR reflection absorption). The IR beam comes in at grazing angle (i.e. almost parallel to the surface), and although absorption bands in RAIRS have intensities that are some two orders of magnitude weaker than in transmission studies on... 

Hayden, B.E., King, A. and Newton, M.A. (1999) Fourier transform reflection absorption IR spectroscopy study of formate adsorption on TiO2(110). 

Teraoka, R., Otsuka, M., and Matsuda, Y., 1999, Evaluation of photostability of solid state dimethyl l,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-3,5-dicarboxylate by using Fourier-transform reflection-absorption IR spectroscopy, Int. J. Pharm. 184, 35-43. 

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