Characterizing the Zeeman slowing force for ⁴⁰Ca¹⁹F molecules

authored by

P. Kaebert, M. Stepanova, T. Poll, M. Petzold, S. Xu, M. Siercke, S. Ospelkaus

Abstract

In this paper we investigate the feasibility of Zeeman slowing calcium monofluoride molecules originating from a cryogenic buffer gas cell. We measure the hyperfine spectrum of CaF in the Paschen-Back regime and find excellent agreement with theory. We then investigate the scattering rate of the molecules in a molecular Zeeman slower by illuminating them with light from a 10 mW broad repumper and a 10 mW multi-frequency slowing laser. By comparing our results to theory we can calculate the photon scattering rate at higher powers, leading to a force profile for Zeeman slowing. We show results from a simple 1D simulation demonstrating that this force is narrow enough in velocity space to lead to significant velocity compression, and slowing of the molecules to trappable velocities.

Organisation(s)

Institute of Quantum Optics
QuantumFrontiers

Type

Article

Journal

New journal of physics

Volume

23

ISSN

1367-2630

Publication date

08.09.2021

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

Electronic version(s)

https://doi.org/10.1088/1367-2630/ac1ed7 (Access: Open)