Lamb-dip observation with a Q-switched CO(2) laser.
Heterodyning a passively Q-switched CO(2) laser against a stable cw CO(2) laser produced a ~0.2-MHz-wide beat frequency. The line width of the Q-switched CO(2) laser is thus sufficiently narrow to stabilize the laser on the Lamb dip in the 4.3-microm fluorescence of CO(2).
Siemsen
K J
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