The incoherent inelastic part of the resonance fluorescence spectrum of a laser-driven atom is known as the Mollow spectrum [B. R. Mollow, Phys. Rev. 188, 1969 (1969)]. Starting from this level of description, we discuss theoretical foundations of high-precision spectroscopy using the resonance fluorescence light of strongly laser-driven atoms. Specifically, we evaluate the leading relativistic and radiative corrections to the Mollow spectrum, up to the relative orders of ( Z α )2 and α ( Z α )2 , respectively, and Bloch-Siegert shifts as well as stimulated radiative corrections involving off-resonant virtual states. Complete results are provided for the hydrogen 1 S - 2 P1 / 2 and 1 S - 2 P3 /2 transitions; these include all relevant correction terms up to the specified order of approximation and could directly be compared to experimental data. As an application, the outcome of such experiments would allow for a sensitive test of the validity of the dressed-state basis as the natural description of the combined atom-laser system.
J. Evers et al., "Relativistic and Radiative Corrections to the Mollow Spectrum," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 70, no. 6, pp. 062111-1-062111-20, American Physical Society (APS), Dec 2004.
The definitive version is available at https://doi.org/10.1103/PhysRevA.70.062111
Keywords and Phrases
Approximation Theory; Dynamics; Fluorescence; Lasers; Perturbation Techniques; Quantum Theory; Resonance; Lamb Shift; Laser-driven Atoms; Mollow Spectrum; Rabi Frequencies; Spectroscopy
International Standard Serial Number (ISSN)
Article - Journal
© 2004 American Physical Society (APS), All rights reserved.
01 Dec 2004