Analytic solutions of the optical Bloch equations for a two-level atom interacting with a strong polychromatic field whose frequencies are symmetrically positioned with respect to the atomic frequency are used to obtain the polarization spectrum of the atom. The spectrum is found to consist of a series of discrete peaks or dips superimposed on the continuous part of the spectrum. Physical interpretation of resonances exhibited in the continuous part of the spectrum is given using a semiclassical dressed-atom approach.
|Number of pages||9|
|Journal||Physical Review A - Atomic, Molecular, and Optical Physics|
|Publication status||Published - 1999|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics