Laser spectroscopy of the 1001nm ground state transition in dysprosium

Abstract

We present the first direct excitation of the presumably ultra-narrow $1001\text{nm}$ ground state transition in atomic dysproium. By using resonance ionization spectroscopy with pulsed Ti:sapphire lasers at a hot cavity laser ion source, we were able to measure the isotopic shifts in the $1001\text{nm}$ line between all seven stable isotopes. Furthermore, we determined the upper level energy from the atomic transition frequency of the ${}^{164}\text{Dy}$ isotope as $9991.004(1){\text{cm}}^{-1}$ and confirm the level energy listed in the NIST database. Since a sufficiently narrow natural linewidth is an essential prerequisite for high precision spectroscopic investigations for fundamental questions we furthermore determined a lower limit of $2.9(1)\mu \text{s}$ for the lifetime of the excited state.

References in corpus (12)

• A Strongly Dipolar Bose-Einstein Condensate of Dysprosium
• Quantum computing with alkaline earth atoms
• A quantum many-body spin system in an optical lattice clock
• Probing new light force-mediators by isotope shift spectroscopy
• Alkaline-Earth-Metal Atoms as Few-Qubit Quantum Registers
• Localized magnetic moments with tunable spin exchange in a gas of ultracold fermions
• Probing the Kondo Lattice Model with Alkaline Earth Atoms
• Isotope shift, non-linearity of King plots and the search for new particles
• Spectroscopy of a narrow-line laser cooling transition in atomic dysprosium
• Efficient, high-resolution resonance laser ionization spectroscopy using weak transitions to long-lived excited states
• Theoretical study of the experimentally important states of dysprosium
• Efficient and robust photo-ionization loading of beryllium ions

Cited by in corpus (3)

• Dipolar physics: A review of experiments with magnetic quantum gases
• Spectroscopy of the 1001 nm transition in atomic dysprosium
• Detection of missing low-lying atomic states in actinium