Isotope shifts of transitions in 147–150,152,154Sm II by fast-ion-beam laser spectroscopy

P. Villemoes; M. Wang; A. Arnesen; C. Weiler; A. Wännström

International Quantum Electronics Conference
OSA Technical Digest (Optica Publishing Group, 1994),
paper QThF19

Isotope shifts of transitions in ^{147–150,152,154}Sm II by fast-ion-beam laser spectroscopy

P. Villemoes, M. Wang, A. Arnesen, C. Weiler, and A. Wännström

International Quantum Electronics Conference 1994

Anaheim, California United States
8–13 May 1994
ISBN: 1-55752-342-8

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Poster Session 3 (QThF)

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P. Villemoes, M. Wang, A. Arnesen, C. Weiler, and A. Wännström, "Isotope shifts of transitions in 147–150,152,154Sm II by fast-ion-beam laser spectroscopy," in International Quantum Electronics Conference, J. Shah, C. Weiman, R. Freman, and J. Fujimoto, eds., Vol. 9 of OSA Technical Digest (Optica Publishing Group, 1994), paper QThF19.

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Abstract

We have measured the isotope shifts (IS) of 16 transitions and the hyperfine structure (hfs) of 10 levels in singly ionized samarium (^{147-150,152,154}Sm II) by means of collinear fast-ion-beam laser spectroscopy (FIBLAS). We have improved the technique of FIBLAS for IS measurements by using an idea proposed by Borghs et al.¹ and by using an isotopically pure beam. When we add the frequency separations between isotopes in spectra recorded in parallel and antiparallel geometries, respectively, the differences in the first-order Doppler shift between accelerated ions with different masses cancel. The expression for the experimental isotope shift becomes.

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