Double-Frequency Doppler-Free Spectroscopy of 87Rb Atoms
We investigate Doppler-free absorption lines induced by counter-propagating polychromatic optical fields in the D1 line of 87Rb atoms. Cases of orthogonal and parallel polarizations are considered. The resonance associated with Fe = 1 demonstrates unusual behaviour with two-photon detuning: the amplitude grows while the width becomes smaller. The crossover resonance involving transitions to both sublevels Fe = 1, 2 of the excited state is more pronounced at parallel polarizations than at orthogonal and has smaller width compared to the lines corresponding to atomic transitions. A qualitative explanation of experimentally observed features is given.
Authors
- V. V. Vassiliev (ORCID: https://orcid.org/0009-0009-6618-9700)
- Eugene A. Tsygankov (ORCID: https://orcid.org/0000-0001-9087-2782)
- M. I. Vaskovskaya (ORCID: https://orcid.org/0000-0002-7381-1280)
- K. M. Sabakar
- V. L. Velichansky (ORCID: https://orcid.org/0000-0003-4889-6937)
- S. A. Zibrov
- А.А. Федоров (ORCID: https://orcid.org/0000-0002-7911-3301)
- D. S. Chuchelov (ORCID: https://orcid.org/0000-0001-5700-4289)
Institutions
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences (RU)
- National Research Nuclear University MEPhI (RU)
Publication Details
- Journal
- Journal of Experimental and Theoretical Physics Letters
- Published
- 2025-04-01
- DOI
- https://doi.org/10.1134/s0021364025605615
- Citations
- 2
- Primary Topic
- Atomic and Subatomic Physics Research
- Type
- article
- Field-Weighted Citation Impact
- 2.49