Abstract

A common 10-cm Pyrex infrared gas phase cell can be heated to a temperature of about 250°C under a vacuum of 10⁻⁴ Torr if the crystal windows are sealed to the cell body with silicone rubber. A double-beam, forced-air circulation chamber or oven has been designed and constructed so that such cells can be used to obtain compensated high-temperature infrared spectra. The temperatures of both the sample and reference cells are essentially identical since the forced circulation in the oven achieves a thermal homogeneity over the whole interior of the oven. The temperatures of the cells may be raised or lowered relatively rapidly without damage.

Construction of a Dual Beam Heated Infrared Cell

John T. Neu
J. Opt. Soc. Am. 43(6) 520-521 (1953)

Spectroscopic study of a diffusion-bonded sapphire cell for hot metal vapors

Naota Sekiguchi, Takumi Sato, Kiyoshi Ishikawa, and Atsushi Hatakeyama
Appl. Opt. 57(1) 52-56 (2018)

A Very High Temperature Infrared Cell for Pure Liquids or Solutions

E. Fishman
Appl. Opt. 1(4) 493-495 (1962)

Simple Double-Beam Modification for Far Infrared Interferometers

R. J. Douglas and T. Timusk
Appl. Opt. 13(4) 723-725 (1974)

A Double Beam, High Resolution Spectrometer for the Far Infrared

T. M. Hard and R. C. Lord
Appl. Opt. 7(4) 589-598 (1968)