Sub-Doppler tunable far-infrared spectroscopy.
The first experimental observations to our knowledge of sub-Doppler linewidths in a cell made using tunable far-infrared radiation are reported. A double-resonance scheme has been used, combining CO(2)-laser infrared radiation with tunable far-infrared radiation to observe a sub-Doppler line shape in an excited vibrational state of CH(3)OH.
Inguscio
M
M
Zink
L R
LR
Evenson
K M
KM
Jennings
D A
DA