Spectroscopy and physics of atoms and molecules

Identification of optical magnetic resonances generated in a neon discharge by coherent transitions of spatially separated isotopically different atoms

È. G. Saprykin

Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia

Abstract: Infrared (IR) transitions are identified in the neon spectrum in the range 0.76–15.8 $\mu$m, they generate resonances due to quadrature field synchronization of spatially separated isotopically different atoms. The use of numerical methods for the analysis of low-contrast IR resonances made it possible to estimate the previously unknown isotopic shifts of their parent transitions levels. A change in the amplitude sign of quadrature optical-magnetic resonances with a change in the isotopic shift sign of the transitions that generate them is found, and the dependence of the lifetime of such coherent atom pairs on the transitions wavelength is recorded, showing an unusual reaching the plateau as the wavelength decreases. It is assumed that this is due to expansion of the response time of the neighboring excited atoms of the isotopic pair to their fields interference.

Keywords: neon, IR transitions, field interference, coherent atom pairs.

Received: 27.08.2020
Revised: 30.06.2021
Accepted: 25.10.2021

DOI: 10.21883/OS.2022.02.51987.223-21

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