An Absorption Tube for the Investigation of Gases in the Photographic Infrared

Richard M. Badger, Lyman G. Bonner, Paul C. Cross
1935 Journal of the Optical Society of America  
An absorption cell of novel design is described, which combines the advantages of long path and relatively small volume.
doi:10.1364/josa.25.000355 fatcat:a2uo62pcfnf4tbuq6m6w435634