2000/04/30 by P. R. Berman, B. Dubetsky · 1 citation
Physics and Astronomy · #Atomic and Subatomic Physics Research #Mechanical and Optical Resonators #Quantum optics and atomic interactions #physics.atom-ph
paper · pdf · doi:10.1103/physreva.62.053412
11 pages, 5 figures
arxiv created 2000/05/15 · openalex publication_date 2000/10/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A theory of pump-probe spectroscopy is developed in which optical fields drive two-quantum, Raman-like transitions between ground-state sublevels. Three fields are incident on an ensemble of atoms. Two of the fields act as the pump field for the two-quantum transitions. The absorption or gain of an additional probe field is monitored as a function of its detuning from one of the fields which constitutes the pump field. Although the probe absorption spectrum displays features common to those found in pump-probe spectroscopy of single-quantum transitions, new interference effects are found to modify the spectrum. Many of these features can be explained within the context of a dressed-atom picture.