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This article is cited in 3 scientific papers (total in 3 papers)
Physics of ultracold atoms
Dynamics of three-photon laser excitation of mesoscopic ensembles of cold rubidium atoms to Rydberg states
D. B. Tretyakova, V. M. Entina, E. A. Yakshinaab, I. I. Beterovabc, I. I. Ryabtseva a Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk
b Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk
c Novosibirsk State Technical University
Abstract:
The temporal dynamics of three-photon 5S1/2 → 5P3/2 → 6S1/2 → 39P3/2 laser excitation of mesoscopic ensembles of cold Rb atoms to Rydberg states in a magneto-optical trap is studied using cw single-frequency lasers at each stage. The ensembles comprise N = 1 – 5 atoms and are detected by the method of selective field ionisation with postselection with respect to the number of atoms. The dependence of the excitation probability on the duration of the exciting laser pulses and the number of detected Rydberg atoms is investigated. At short interaction times, a linear increase in probabilities is observed, and at large times, the probabilities reach saturation, while each number of atoms has its own characteristic features. The experimental dependences are compared with the results of numerical calculations in the framework of a four-level model, and their good agreement is obtained. The conditions necessary for observing Rabi population oscillations are determined. The obtained results are important for the application of Rydberg atoms in quantum information.
Keywords:
Rydberg atoms, three-photon excitation, spectroscopy, dynamics, detection statistics, laser cooling.
Received: 27.03.2022 Accepted: 27.03.2022
Citation:
D. B. Tretyakov, V. M. Entin, E. A. Yakshina, I. I. Beterov, I. I. Ryabtsev, “Dynamics of three-photon laser excitation of mesoscopic ensembles of cold rubidium atoms to Rydberg states”, Kvantovaya Elektronika, 52:6 (2022), 513–522 [Quantum Electron., 52:6 (2022), 513–522]
Linking options:
https://www.mathnet.ru/eng/qe18064 https://www.mathnet.ru/eng/qe/v52/i6/p513
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