Bichromatic UV detection system for atomically-resolved imaging of ions

verfasst von: T. Nordmann, S. Wickenhagen, M. Doležal, T. E. Mehlstäubler
Abstract: We present a compact bichromatic imaging system, located outside of the vacuum chamber of a trapped ion apparatus that collects the fluorescence of 230.6 and 369.5 nm photons simultaneously on a shared electron-multiplying charge-coupled device (EMCCD) camera. The system contains two lens doublets, consisting of a sphere and an asphere. They provide a numerical aperture of 0.45 and 0.40 at 230.6 and 369.5 nm, respectively, and enable spatially resolved state detection with a large field of view of 300 μm for long ¹¹⁵In⁺/¹⁷²Yb⁺ Coulomb crystals. Instead of diffraction-limited imaging for one wavelength, the focus in this system is on simultaneous single-ion resolved imaging of both species over a large field, with special attention to the deep UV wavelength (230.6 nm) and the low scattering rate of In⁺ ions. The introduced concept is applicable to other dual-species applications.
Organisationseinheit(en): Institut für Quantenoptik
Laboratorium für Nano- und Quantenengineering
QuantumFrontiers
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)
Externe Organisation(en): Physikalisch-Technische Bundesanstalt (PTB)
Asphericon GmbH
Czech Metrology Institute
Typ: Artikel
Journal: Review of scientific instruments
Band: 94
ISSN: 0034-6748
Publikationsdatum: 06.2023
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Instrumentierung
Elektronische Version(en): https://doi.org/10.48550/arXiv.2302.02489 (Zugang: Offen)
https://doi.org/10.1063/5.0145409 (Zugang: Geschlossen)

BibTeX

@article{f0e6c49cb6ee475c88432666924d2e0b,
title = "Bichromatic UV detection system for atomically-resolved imaging of ions",
abstract = "We present a compact bichromatic imaging system, located outside of the vacuum chamber of a trapped ion apparatus that collects the fluorescence of 230.6 and 369.5 nm photons simultaneously on a shared electron-multiplying charge-coupled device (EMCCD) camera. The system contains two lens doublets, consisting of a sphere and an asphere. They provide a numerical aperture of 0.45 and 0.40 at 230.6 and 369.5 nm, respectively, and enable spatially resolved state detection with a large field of view of 300 μm for long 115In+/172Yb+ Coulomb crystals. Instead of diffraction-limited imaging for one wavelength, the focus in this system is on simultaneous single-ion resolved imaging of both species over a large field, with special attention to the deep UV wavelength (230.6 nm) and the low scattering rate of In+ ions. The introduced concept is applicable to other dual-species applications.",
author = "T. Nordmann and S. Wickenhagen and M. Dole{\v z}al and Mehlst{\"a}ubler, {T. E.}",
note = "Funding Information: We acknowledge funding by the Deutsche Forschungsgemeinschaft (DFG) through Grant No. CRC 1227 (DQ-mat, Project No. B03) and through Germany{\textquoteright}s Excellence Strategy EXC2123 QuantumFrontiers. We thank department 5.5 for the machining of the mechanical mounting of the setup and, especially, M. M{\"u}ller for its design. Furthermore, we thank J. Kiethe and J. Keller for helpful discussions and comments on the manuscript. ",
year = "2023",
month = jun,
doi = "10.48550/arXiv.2302.02489",
language = "English",
volume = "94",
journal = "Review of scientific instruments",
issn = "0034-6748",
publisher = "American Institute of Physics",
number = "6",
}