The frequencies of eight D2O infrared absorptions near 9.4 µm, which are used in optically pumped submillimeter-wave lasers, have been measured by heterodyning CO2 and tunable-diode-laser radiations.
© 1978 Optical Society of America
T. L. Worchesky, K. J. Ritter, J. P. Sattler, and W. A. Riessler, "Heterodyne measurements of infrared absorption frequencies of D2O," Opt. Lett. 2, 70-71 (1978)