A Zeeman slower for diatomic molecules

We present a novel slowing scheme for beams of laser-coolable diatomic molecules reminiscent of Zeeman slowing of atomic beams. The scheme results in efficient compression of the one-dimensional velocity distribution to velocities trappable by magnetic or magneto-optical traps. We experimentally dem...

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Main Authors: M Petzold, P Kaebert, P Gersema, M Siercke, S Ospelkaus
Format: Article
Language:English
Published: IOP Publishing 2018-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/aab9f5
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author M Petzold
P Kaebert
P Gersema
M Siercke
S Ospelkaus
author_facet M Petzold
P Kaebert
P Gersema
M Siercke
S Ospelkaus
author_sort M Petzold
collection DOAJ
description We present a novel slowing scheme for beams of laser-coolable diatomic molecules reminiscent of Zeeman slowing of atomic beams. The scheme results in efficient compression of the one-dimensional velocity distribution to velocities trappable by magnetic or magneto-optical traps. We experimentally demonstrate our method in an atomic testbed and show an enhancement of flux below v  = 35 m s ^−1 by a factor of ≈20 compared to white light slowing. 3D Monte Carlo simulations performed to model the experiment show excellent agreement. We apply the same simulations to the prototype molecule ^88 Sr ^19 F and expect 15% of the initial flux to be continuously compressed in a narrow velocity window at around 10 m s ^−1 . This is the first experimentally shown continuous and dissipative slowing technique in molecule-like level structures, promising to provide the missing link for the preparation of large ultracold molecular ensembles.
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spelling doaj.art-05e03bbccef64d0fbfe782be95b193102023-08-08T14:48:10ZengIOP PublishingNew Journal of Physics1367-26302018-01-0120404200110.1088/1367-2630/aab9f5A Zeeman slower for diatomic moleculesM Petzold0P Kaebert1P Gersema2M Siercke3S Ospelkaus4Leibniz Universität Hannover , Institute for Quantum Optics, Welfengarten 1, D-30167 Hannover, GermanyLeibniz Universität Hannover , Institute for Quantum Optics, Welfengarten 1, D-30167 Hannover, GermanyLeibniz Universität Hannover , Institute for Quantum Optics, Welfengarten 1, D-30167 Hannover, GermanyLeibniz Universität Hannover , Institute for Quantum Optics, Welfengarten 1, D-30167 Hannover, GermanyLeibniz Universität Hannover , Institute for Quantum Optics, Welfengarten 1, D-30167 Hannover, GermanyWe present a novel slowing scheme for beams of laser-coolable diatomic molecules reminiscent of Zeeman slowing of atomic beams. The scheme results in efficient compression of the one-dimensional velocity distribution to velocities trappable by magnetic or magneto-optical traps. We experimentally demonstrate our method in an atomic testbed and show an enhancement of flux below v  = 35 m s ^−1 by a factor of ≈20 compared to white light slowing. 3D Monte Carlo simulations performed to model the experiment show excellent agreement. We apply the same simulations to the prototype molecule ^88 Sr ^19 F and expect 15% of the initial flux to be continuously compressed in a narrow velocity window at around 10 m s ^−1 . This is the first experimentally shown continuous and dissipative slowing technique in molecule-like level structures, promising to provide the missing link for the preparation of large ultracold molecular ensembles.https://doi.org/10.1088/1367-2630/aab9f5laser coolingcold moleculesultracold moleculesmolecular beam slowing
spellingShingle M Petzold
P Kaebert
P Gersema
M Siercke
S Ospelkaus
A Zeeman slower for diatomic molecules
New Journal of Physics
laser cooling
cold molecules
ultracold molecules
molecular beam slowing
title A Zeeman slower for diatomic molecules
title_full A Zeeman slower for diatomic molecules
title_fullStr A Zeeman slower for diatomic molecules
title_full_unstemmed A Zeeman slower for diatomic molecules
title_short A Zeeman slower for diatomic molecules
title_sort zeeman slower for diatomic molecules
topic laser cooling
cold molecules
ultracold molecules
molecular beam slowing
url https://doi.org/10.1088/1367-2630/aab9f5
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