Rotationally resolved infrared-ultraviolet double-resonance effects have been observed in D2CO vapor by using pulsed radiation from a CO2 laser and a tunable dye laser. The infrared laser pumps D2CO molecules in the 14 rovibrational band, and subsequent excitation by the dye laser in the 365-nm 4I° vibronic band is detected by fluorescence at 420 nm. The results consolidate assignments from high-resolution absorption spectra and yield estimates of rotational-relaxation rates.
© 1980 Optical Society of America
Brian J. Orr and Gary F. Nutt, "Infrared-ultraviolet double resonance in D2CO vapor," Opt. Lett. 5, 12-14 (1980)