A sensitive method to study a dilute ultracold plasma based on the autoionization resonances of Rydberg atoms is demonstrated. Ultracold 40Ca Rydberg atoms are prepared in a continuously operating magneto-optical trap. A method that allows the detection of the plasma with ion and electron densities below 109 m–3 is shown. Experimental studies of resonances at the two-photon \(4s3d{{\,}^{1}}{{D}_{2}}{-} 90{{\,}^{1}}{{D}_{2}}\) Rydberg transition have been carried out using 672 and 798 nm resonant laser beams. The autoionization resonance is observed during fluorescence of single-charged 40Ca ions at a wavelength of 397 nm. The dependence of the amplitude of autoionization resonance on the density of ions in the continuously generated ultracold plasma is obtained.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
M. Lyon and S. L. Rolston, Rep. Prog. Phys. 80, 017001 (2016).
P. McQuillen, X. Zhang, T. Strickler, F. B. Dunning, and T. C. Killian, Phys. Rev. A 87, 013407 (2013).
T. F. Gallagher, Rydberg Atoms (Cambridge Univ. Press, Cambridge, 2005).
G. Fields, X. Zhang, F. B. Dunning, S. Yoshida, and J. Burgörfer, Phys. Rev. A 97, 013429 (2018).
D. Wehrli, M. Genevriez, and F. Merkt, Phys. Rev. A 100, 012515 (2019).
G. Lochead, D. Boddy, D. P. Sadler, C. S. Adams, and M. P. A. Jones, Phys. Rev. A 87, 053409 (2013).
H. Park, R. Ali, and T. F. Gallagher, Phys. Rev. A 82, 023421 (2010).
T. K. Langin, G. M. Gorman, and T. C. Killian, Science (Washington, DC, U. S.) 363, 61 (2019).
B. B. Zelener, I. D. Arshinova, A. A. Bobrov, E. V. Vilshanskaya, S. A. Saakyan, V. A. Sautenkov, B. V. Zelener, and V. E. Fortov, JETP Lett. 108, 820 (2018).
B. B. Zelener, S. A. Saakyan, K. P. Galstyan, E. V. Vilshanskaya, and V. A. Sautenkov, in Proceedings of the 3rd International Conference on Optics, Photonics and Lasers OPAL-2020, Tenerife, Spain, October 21–22, 2020, p. 16.
A. A. Bobrov, S. Ya. Bronin, A. B. Klyarfeld, D. S. Korchagin, B. B. Zelener, and B. V. Zelener, Phys. Plasmas 27, 122103 (2020).
Funding
The work was supported by the Russian Science Foundation, project no. 18-12-00424. The work on the creation of an optical scheme for the excitation of Rydberg atoms using a laser at a wavelength of 798 nm was also supported by the Council of the President of the Russian Federation for Support of Young Scientists and Leading Scientific Schools, project no. MD-2189.2019.2
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by R. Bando
Rights and permissions
About this article
Cite this article
Zelener, B.B., Vilshanskaya, E.V., Saakyan, S.A. et al. Diagnostics of a Diluted Ultracold Plasma Using the Autoionization Effect of Rydberg States of 40Ca Atoms. Jetp Lett. 113, 82–85 (2021). https://doi.org/10.1134/S0021364021020107
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0021364021020107