Abstract

The current capability of high resolution, high wave-number accuracy infrared instruments offers the potential for conveniently studying very subtle (one or two cm⁻¹) band displacements as a function of structure or solvent <i>(1)</i>. For measurements of tenths of cm⁻¹ accuracy, it has formerly been necessary to calibrate the instrument carefully, using the known locations of the rotational bands of various light gases <i>(2)</i> and also to know the repeat-ability of the instrument to allow for errors in temperature variation, mechanical linkages, etc. The built-in accuracy of some of the newer instruments makes this procedure unnecessary.

Precise Measurements of Some Infrared Bands of Hydrogen Chloride*

D. H. Rank, W. B. Birtley, D. P. Eastman, B. S. Rao, and T. A. Wiggins
J. Opt. Soc. Am. 50(12) 1275-1279 (1960)

High-resolution Fourier-transform cavity-enhanced absorption spectroscopy in the near-infrared using an incoherent broad-band light source

Johannes Orphal and Albert A. Ruth
Opt. Express 16(23) 19232-19243 (2008)

Precision Thermal Expansion Measurements on Low Expansion Optical Materials

W. A. Plummer and H. E. Hagy
Appl. Opt. 7(5) 825-831 (1968)

Precision Measurement of the Wavelengths of Infrared Absorption Lines with Diffraction Gratings*

D. H. Rank
J. Opt. Soc. Am. 50(7) 657-659 (1960)

Magnetooptical Experiments on Broad Absorption Bands in Solids

Frederick C. Brown and George Laramore
Appl. Opt. 6(4) 669-673 (1967)