Compact structures for single-beam magneto-optical trapping of ytterbium

authored by: J. Pick, R. Schwarz, J. Kruse, C. Lisdat, C. Klempt
Abstract: At present, the best optical lattice clocks are based on the spectroscopy of trapped alkaline-earth-like atoms such as ytterbium and strontium. The development of mobile or even space-borne clocks necessitates concepts for the compact laser-cooling and trapping of these atoms with reduced laser requirements. Here, we present two compact and robust achromatic mirror structures for single-beam magneto-optical trapping of alkaline-earth-like atoms using two widely separated optical cooling frequencies. We have compared the trapping and cooling performance of a monolithic aluminum structure that generates a conventional trap geometry to a quasi-planar platform based on a periodic mirror structure for different isotopes of Yb. Compared to prior work with strontium in non-conventional traps, where only bosons were trapped on a narrow line transition, we demonstrate two-stage cooling and trapping of a fermionic alkaline-earth-like isotope in a single-beam quasi-planar structure.
Organisation(s): Institute of Quantum Optics
QuantumFrontiers
External Organisation(s): DLR-Institute for Satellite Geodesy and Inertial Sensing
Type: Article
Journal: Review of scientific instruments
Volume: 95
No. of pages: 7
ISSN: 0034-6748
Publication date: 01.07.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Instrumentation
Electronic version(s): https://doi.org/10.48550/arXiv.2403.07446 (Access: Open)
https://doi.org/10.1063/5.0203308 (Access: Open)

BibTeX

@article{886f19ec5ea84e699cddc78bce66fc96,
title = "Compact structures for single-beam magneto-optical trapping of ytterbium",
abstract = "At present, the best optical lattice clocks are based on the spectroscopy of trapped alkaline-earth-like atoms such as ytterbium and strontium. The development of mobile or even space-borne clocks necessitates concepts for the compact laser-cooling and trapping of these atoms with reduced laser requirements. Here, we present two compact and robust achromatic mirror structures for single-beam magneto-optical trapping of alkaline-earth-like atoms using two widely separated optical cooling frequencies. We have compared the trapping and cooling performance of a monolithic aluminum structure that generates a conventional trap geometry to a quasi-planar platform based on a periodic mirror structure for different isotopes of Yb. Compared to prior work with strontium in non-conventional traps, where only bosons were trapped on a narrow line transition, we demonstrate two-stage cooling and trapping of a fermionic alkaline-earth-like isotope in a single-beam quasi-planar structure.",
author = "J. Pick and R. Schwarz and J. Kruse and C. Lisdat and C. Klempt",
note = "Publisher Copyright: {\textcopyright} 2024 Author(s).",
year = "2024",
month = jul,
day = "1",
doi = "10.48550/arXiv.2403.07446",
language = "English",
volume = "95",
journal = "Review of scientific instruments",
issn = "0034-6748",
publisher = "American Institute of Physics",
number = "7",
}