Resonance spectroscopy using a sodium atomic beam and a CW single-frequency dye laser
F. Schuda and C. R. Stroud, Jr.
JOSA 63, 1318 (1973).
The authors describe experiments with a c.w. single-frequency dye laser
and a thermal atomic beam of sodium atoms, aimed at studying the details of
the absorption and emission line-shapes for a particular hyperfine
component of the sodium D2 line. They review briefly the
experimental apparatus including the description of a dye laser operating
in a single mode, which is continuously tunable at constant intensity over
a range of a few hundred MHz. The laser is stable to 3 MHz over a period
of 10 s and is stable to less than 1 MHz over the 10-ms period required to
scan over a few hundred MHz. They then present the results of a
measurement of the scattering cross section as a function of both the laser
intensity and the detuning from resonance; and also the spectrum of the
scattered light as a function of intensity and detuning. They compare
these results with the predictions of quantum and semiclassical radiation
theory, and describe some further related experiments possible with this
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