Double optical resonance
R. M. Whitley and C. R. Stroud, Jr.
Phys. Rev. A 14, 1498 (1976).
Click here to download the .pdf version of the paper
whitley761.pdf (2.88 MB)
The theoretical treatment of a three-level atom interacting with two
near-resonant monochromatic fields is discussed. The applied fields are
assumed to have constant intensity after being turned on at time zero. It
is assumed that the only damping present is natural radiative decay. Full
QED equations of motion are derived and complete dynamic solutions of the
equations are developed. Specific examples of absorption and emission
spectra are discussed in detail, the absorption spectrum showing strong
dependence on the incident field strengths and detunings. Emission
spectrum for an atom in the presence of strong fields is shown to have
three side bands on either side of the central peak symmetrically located
with respect to it, but the whole spectra being asymmetric because the
intensities of the symmetrically placed side bands are not equal. It is
shown that for certain values of the atomic decay constants the average
population in the highest excited state can exceed one half, and that in
the limit of strong exactly resonant fields the ratios of the line
intensities for the lower transition depend only on the interaction
energies while those for the upper transition only on the decay constants.
Web page maintained by
Hideomi Nihira ( firstname.lastname@example.org ).
Last modified 13 September 2006