Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 27: Poster: Quantum Optics and Photonics II
Q 27.59: Poster
Dienstag, 1. März 2016, 16:30–19:00, Empore Lichthof
Compact laser system for manipulating 9Be+ ions at a high magnetic field — •Alexander Idel1, Sebastian Grondkowski1, Malte Niemann1, Teresa Meiners1, Stefan Ulmer3, and Christian Ospelkaus1,2 — 1Leibniz Universität Hannover, Institut für Quantenoptik, Hannover — 2Physikalisch-Technische Bundesanstalt, Braunschweig — 3Ulmer Initiative Research Unit, RIKEN
In this project, we are developing quantum logic spectroscopy techniques for single (anti-)protons with the ultimate goal of supporting a g-factor based test of CPT invariance [1]. We discuss laser systems for cooling, repumping and controlling of 9Be+ hyperfine qubit ions at a high magnetic field of 5 T. The light for Doppler cooling, repumping and Raman sideband transitions will be provided by three tunable infrared fiber-lasers generating two beams via sum-frequency generation (SFG) and subsequent second harmonic generation, similar to [2]. We build a compact system split into three single, stackable breadboards (600 mm × 600 mm), connected via fibers. One breadbord is used for two independent SFG stages. The SFG wavelength is stabilized to an iodine vapor cell. The light is then frequency-doubled on the other breadboards to generate the required wavelenght of about 313 nm for ion and qubit manipulation.
[1] D. J. Heinzen and D. J. Wineland, Phys. Rev. A 42, 2977 (1990).
[2] A.C. Wilson et al., Appl. Phys. B, 105: 741-748 (2011).