Abstract

Variable path-length liquid cells for infrared spectros-copy are items of routine application. The literature contains few, if any, references to their gas-phase counterpart, however. One obvious use for a variable path-length gas cell would be as a reference cell for the cancellation of the background spectra of gases during <i>in situ</i> studies of weak adsorption on sample dises of varying thickness.

Variable-length cell for studies of gas spectra with extremely short optical paths

Sébastien B. Morales, Edouard Pangui, Xavier Landsheere, Ha Tran, and Jean-Michel Hartmann
Appl. Opt. 53(19) 4117-4122 (2014)

Simultaneous measurement of gas absorption spectra and optical path lengths in a multipass cell by FMCW interferometry

Xiutao Lou, Chen Chen, Yabo Feng, and Yongkang Dong
Opt. Lett. 43(12) 2872-2875 (2018)

A Long Path Gas Absorption Cell

Robert G. Pilston and John U. White
J. Opt. Soc. Am. 44(7) 572-573 (1954)

Variable-Temperature Infrared Cells

A. W. Baker
Appl. Opt. 4(3) 321-324 (1965)

Astigmatic mirror multipass absorption cells for long-path-length spectroscopy

J. B. McManus, P. L. Kebabian, and M. S. Zahniser
Appl. Opt. 34(18) 3336-3348 (1995)