Abstract

An infrared cell is described which extends the range of temperatures for liquids up to the critical temperature. Window materials are sapphire or calcium fluoride, sealed to the cell walls by teflon O-rings. Brass may be used for the cell body, but alloys of low thermal expansion are preferable. Thermal expansion of the cell prevents accurate determination of intensities. The cell performed well enough to yield the spectrum of liquid water and alcohol solutions up to the critical points.

© 1962 Optical Society of America

Silver Chloride Cavity Window for Infrared Liquid Cells

Marguerite C. Bottjer and Helmut M. Haendler
Appl. Opt. 1(6) 772-773 (1962)

Infrared Photodetectors: A Review of Operational Detectors

R. F. Potter and W. L. Eisenman
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Performance of the Beckman IR-7 Infrared Spectrophotometer 2. Frequency Reproducibility and Accuracy (200–800 cm⁻¹)

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Emittance Measurements on Infrared Windows Exhibiting Wavelength Dependent Diffuse Transmittance

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Absorption Line Broadening in the Infrared

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