Bonn 2025 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
A: Fachverband Atomphysik
A 37: Poster – Highly Charged Ions and their Applications
A 37.10: Poster
Donnerstag, 13. März 2025, 17:00–19:00, Tent
A high NA imaging lens for imaging Coulomb crystals in a cryogenic Paul trap experiment — •Christian Warnecke1,2, Elwin A. Dijck1, Bettina Mörk1, and José R. Crespo-López Urrutia1 — 1Max-Planck-Institute for Nuclear Physics, Heidelberg, Germany — 2Heidelberg Graduate School for Physics, Heidelberg, Germany
Highly charged ions are promising candidates for studying beyond Standard Model phenomena and advancing frequency standards in the XUV regime. At the Max-Planck Institute for Nuclear Physics in Heidelberg, a novel quasi-monolithic superconducting quadrupole resonator is used as a Paul trap to provide a noise-free environment for quantum logic spectroscopy of highly charged ions. Due to the relatively large trap dimensions of approximately 220 × 120 × 120 mm3 , a minimum working distance of 60 mm is required to collect photons for state readout. Additionally, measures were taken to minimize thermal blackbody radiation input to the 4K cooling stage. The imaging system, comprising six lenses thermally stabilized at 4K and 40K, achieves a numerical aperture of 0.4 and covers a 500 µm field of view at a design wavelength of 313 nm. We will discuss our approach and provide insights from current measurements.
Keywords: Cryogenics; instrumentation; optics; ion traps