Experimental investigation of the radiation spectrum of a submillimeter CD3OH molecular laser

Advances in Microwave and Submillimeter‐Wave Dielectric Spectroscopic Techniques and their Applications

“…For large attenuations such that aL > 1, the denominator of Eq. (26) approaches unity, with the result that ln(P,/P,) is a linear function of the sample thickness. The slope of the curve ln(P,/P,) versus L can be used to determine a.…”

“…If aL <1, periodic variations may be superimposed on such a linear plot owing to departures from unity of the denominator in Eq. (26). In addition, variations are introduced irito the plot of In( PI/P,,) versus frequency, f , due to optical interference with the waves in the coaxial line arising from reflections at the air-dielectric interfaces and from multiple reflections within the cell.…”

Tunable laser Stark-difference spectra of CD3OH

“…There has been considerable recent interest in high-resolution spectra of methyl alcohol, for both its normal and various isotopic forms (l-4). The C-O stretch fundamentals of these molecules overlap the CO, laser emission band, thus they can be optically pumped with the CO2 laser, leading to far-infrared emission and laser action (5)(6)(7)(8). In this paper we report a tunable diode laser study of the C-O stretch band of 12CD,160H.…”