Abstract

Measurements of 198Hg+gJ factors by two methods are reported. The first method was based on optical wavelength measurements of the Zeeman components of the 6s 2S1/2 (ground state) to 6p 2P1/2 transition at 194 nm. The lines were observed by the absorption of tunable 194-nm radiation by Hg+ ions created in a rf discharge. The results were gJ(6s 2S1/2) = 2.0036(20) and gJ(6p 2P1/2) = 0.6652(20). The second method was based on microwave-optical double resonance of ions confined in a Penning trap. They were optically pumped by the 194-nm source, which was tuned to a particular Zeeman component. An increase in the resonance-fluorescence intensity was observed when the microwave frequency was tuned to the ground-state Zeeman resonance. The result is gJ(6s 2S1/2) = 2.003 174 5(74).

© 1985 Optical Society of America

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