Diagrammatic treatment of coherent backscattering of intense light by cold atoms with degenerate energy levels

2014/07/10 by V. N. Shatokhin, Vyacheslav Shatokhin, R. Blattmann +5 · 3 citations
Physics and Astronomy · #Atomic physics #Coherent backscattering #Computer science #Degenerate energy levels #Diagrammatic reasoning #Energy (signal processing) #Optics #Orbital Angular Momentum in Optics #Physics #Quantum mechanics #Quantum optics and atomic interactions #Random lasers and scattering media #Scattering #physics.atom-ph #quant-ph

paper · pdf · doi:10.1103/physreva.90.023850

published in Physical Review A 90(2) (American Physical Society) · 18 pages, 16 figures

arxiv created 2014/07/10 · openalex publication_date 2014/08/26 · arxiv updated 2016/03/02 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We present a generalization of the diagrammatic pump-probe approach to coherent backscattering (CBS) of intense laser light for atoms with degenerate energy levels. We employ this approach for a characterization of the double-scattering signal from optically pumped atoms with the transition J_g\ensuremath→J_e=J_g+1 in the helicity-preserving polarization channel. We show that, in the saturation regime, the internal degeneracy becomes manifest for atoms with J_g\ensuremath≥1, leading to a faster decrease of the CBS enhancement factor with increasing saturation parameter than in the nondegenerate case.

Citations

• Multiple Scattering of Light by Atoms in the Weak Localization Regime
• Photon Antibunching in Resonance Fluorescence
• Saturation-induced coherence loss in coherent backscattering of light
• Coherent backscattering of light by cold atoms: Theory meets experiment
• Modern quantum mechanics