Abstract

Diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy in the far infrared (FIR) has been found to be feasible to ~40 cm⁻¹. High-density polyethylene powder was used as the non-absorbing matrix and diluent. DRIFT spectra in the FIR of compounds representing organic, inorganic, corrdination, glass, catalysts, and others are presented, and are compared with Nujol mull transmission spectra. Other sampling techniques are suggested, including specular (external reflectance–1 pass) reflectance in the FIR.

Interferometric Spectroscopy in the Far Infrared

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Reflecting Power of Powders in the Far Infrared Region

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Diffuse reflecting surfaces for the infrared and far infrared

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