Optogalvanic spectroscopy of the Zeeman structure of argon energy levels close to the ionization limit

The Lande g(J) factors for high lying states of the argon atom by laser optogalvanic spectroscopy were measured, in most cases with an uncertainty of less than 0.005. The Zeeman structure of 12 argon lines with wavelengths in the range 598.7-612.8 nm was investigated. We determined Lande g(J )factors for 9 odd parity levels and verified the data for several other levels. (C) 2021 Elsevier Ltd. All rights reserved.

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In this study, Lande g(J) factors for high lying states of the argon atom were measured using laser optogalvanic spectroscopy, with most cases having an uncertainty of less than 0.005. The Zeeman structure of 12 argon lines with wavelengths in the range 598.7-612.8 nm was investigated, and Lande g(J) factors for 9 odd parity levels were determined and data for several other levels were verified.