The absorption of microwaves in gases
Forsyth, Peter Allan
The purpose of the present research has been an attempt to discover individual absorption lines in the rotation spectra of some of the heavier molecules, in particular those lines which lie in the region designated by the wavelength limits, 3.15 cm. to 3.3 cm. Investigation of this portion of the electromagnetic spectrum represents a marked departure from standard spectroscopic procedure, which, for this region, is largely replaced by the application of recently developed microwave techniques.