Spectroscopy of electric dipole and quadrupole transitions in ${}^{224}$Ra${}^{+}$

Abstract

We report on spectroscopy of the low-lying electronic transitions in ${}^{224}$Ra${}^{+}$. The ion's low charge to mass ratio and convenient wavelengths make ${}^{224}$Ra${}^{+}$ a promising optical clock candidate. We measured the frequencies of the the ${}^2{S}_{1/2}$$\leftrightarrow$${}^2{P}_{1/2}$ cooling transition, the ${}^2{S}_{1/2}$$\leftrightarrow$${}^2{D}_{5/2}$ clock transition, the ${}^2{D}_{3/2}$$\leftrightarrow$${}^2{P}_{3/2}$ electric dipole transition, and the ${}^2{D}_{5/2}$$\leftrightarrow$${}^2{P}_{3/2}$ cleanout transition. From these measurements we calculate the frequencies of the ${}^2{D}_{3/2}$$\leftrightarrow$${}^2{P}_{1/2}$ repump transition, the ${}^2{S}_{1/2}$$\leftrightarrow$${}^2{D}_{3/2}$ electric quadrupole transition, and the ${}^2{S}_{1/2}$$\leftrightarrow$${}^2{P}_{3/2}$ electric dipole transition.

arXiv comment5 pages, 8 figures

References in corpus (8)

• Preparation and coherent manipulation of pure quantum states of a single molecular ion
• Probing Fundamental Symmetries of Deformed Nuclei in Symmetric Top Molecules
• Calculation of parity nonconserving amplitude and other properties of Ra+
• Optical Mass Spectrometry of Cold ${\mathrm{RaOH}}^{+}$ and ${{\mathrm{RaOCH}}_3}^{+}$
• Radium Ion Optical Clock
• Laser Cooling of Radium Ions
• Measurements of electric quadrupole transition frequencies in ${}^{226}$Ra${}^{+}$
• Laser cooling and trapping of ${}^{224}$Ra${}^{+}$

Cited by in corpus (2)

• Theoretical characterisation of the barium II and radium II ions
• Lifetimes of the Metastable $6\mathrm{d}{}^2{\mathrm{D}}_{5/2}$ and $6\mathrm{d}{}^2{\mathrm{D}}_{3/2}$ States of Ra${}^{+}$