Spectroscopy of a narrow-line optical pumping transition in dysprosium

Abstract

We present measurements of the hyperfine coefficients and isotope shifts of the Dy I $683.731$nm transition, using saturated absorption spectroscopy on an atomic beam. A King Plot is drawn resulting in an updated value for the specific mass shift $\delta {\nu }_{684,\mathrm{sms}}^{164-162}=-534\pm 17MHz$. Using fluorescence spectroscopy we measure the excited state lifetime ${\tau }_{684}=1.68(5)\mu$s, yielding a linewidth of ${\gamma }_{684}=95\pm 3kHz$. We give an upper limit to the branching ratio between the two decay channels from the excited state showing that this transition is useable for optical pumping into a dark state and demagnetization cooling.

References in corpus (11)

• The physics of dipolar bosonic quantum gases
• Bose-Einstein condensation of chromium
• A Strongly Dipolar Bose-Einstein Condensate of Dysprosium
• Bose-Einstein Condensation of Erbium
• Strong dipolar effects in a quantum ferrofluid
• Quantum degenerate dipolar Fermi gas
• All-Optical Production of Chromium Bose-Einstein Condensates
• Dipolar Relaxation in an ultra-cold Gas of magnetically trapped chromium atoms
• Limit on the Temporal Variation of the Fine-Structure Constant Using Atomic Dysprosium
• Damagnetization cooling of a gas
• Transverse laser cooling of a thermal atomic beam of dysprosium

Cited by in corpus (5)

• Dipolar physics: A review of experiments with magnetic quantum gases
• Measurement of the dynamic polarizability of Dy atoms near the 626-nm intercombination line
• Rubidium Isotope Shift Measurement using Noisy Lasers
• Quantum Simulation of Spin-1 XXZ-Heisenberg Models and the Haldane Phase with Dysprosium
• Tunable high-temperature thermodynamics of weakly-interacting dipolar gases