Transverse laser cooling of a thermal atomic beam of dysprosium

Abstract

A thermal atomic beam of dysprosium (Dy) atoms is cooled using the $4f^{10}6s^2(J=8)\to 4f^{10}6s6p(J=9)$ transition at 421 nm. The cooling is done via a standing light wave orthogonal to the atomic beam. Efficient transverse cooling to the Doppler limit is demonstrated for all observable isotopes of dysprosium. Branching ratios to metastable states are demonstrated to be $<5\times 10^{-4}$. A scheme for enhancement of the nonzero-nuclear-spin-isotope cooling, as well as a method for direct identification of possible trap states, is proposed.

5 pages, 4 figures v2: 7 pages, 7 figures

References in corpus (5)

• Atom Interferometry with up to 24-Photon-Momentum-Transfer Beam Splitters
• Trapping ultracold dysprosium: a highly magnetic gas for dipolar physics
• Determination of the Superfluid Gap in Atomic Fermi Gases by Quasiparticle Spectroscopy
• Trapping of Neutral Mercury Atoms and Prospects for Optical Lattice Clocks
• Limit on the Temporal Variation of the Fine-Structure Constant Using Atomic Dysprosium

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• Optical trapping of ultracold dysprosium atoms: transition probabilities, dynamic dipole polarizabilities and van der Waals $C_6$ coefficients
• Dynamic polarizabilities and magic wavelengths for dysprosium
• Theoretical study of the experimentally important states of dysprosium
• Anisotropic optical trapping as a manifestation of the complex electronic structure of ultracold lanthanide atoms: the example of holmium
• Systematic optimization of laser cooling of dysprosium
• Synthesizing Optical Spectra using Computer-Generated Holography Techniques
• Spectroscopy of a narrow-line optical pumping transition in dysprosium
• Isotopic variation of parity violation in atomic ytterbium: method of measurements and analysis of systematic effects
• Comprehensive characterization of an apparatus for cold electromagnetic dysprosium dipoles
• Investigation of ac-Stark shifts in excited states of dysprosium relevant to testing fundamental symmetries
• Active and passive stabilization of a high-power UV frequency-doubled diode laser