Ra+ ion trapping: Toward an atomic parity violation measurement and an optical clock

M. Nuñez Portela, E. A. Dijck, A. Mohanty, H. Bekker, J. E. Van Den Berg, G. S. Giri, S. Hoekstra, C. J.G. Onderwater, S. Schlesser, R. G.E. Timmermans, O. O. Versolato, L. Willmann, H. W. Wilschut, K. Jungmann*

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

A single Ra+ ion stored in a Paul radio frequency ion trap has excellent potential for a precision measurement of the electroweak mixing angle at low momentum transfer and as the most stable optical clock. The effective transport and cooling of singly charged ions of the isotopes 209Ra to 214Ra in a gas filled radio frequency quadrupole device is reported. The absolute frequencies of the transition 7s2S1/2- 7d2D3/2 at wavelength 828 nm have been determined in 212-214Ra+ with ≤19 MHz uncertainty using laser spectroscopy on small samples of ions trapped in a linear Paul trap at the online facility Trapped Radioactive Isotopes: μicrolaboratories for fundamental Physics (TRIμP) of the Kernfysisch Versneller Instituut.

Original languageEnglish
Pages (from-to)173-182
Number of pages10
JournalApplied Physics B: Lasers and Optics
Volume114
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes

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