Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 9: Quantum Communication II
Q 9.1: Vortrag
Montag, 6. März 2017, 17:00–17:15, P 3
A single ion coupled to UV fiber cavity — •Pascal Kobel1, Timothy Ballance1, Kilian Kluge1, Konstantin Ott2, Hendrik M. Meyer1, Jakob Reichel2, and Michael Köhl1 — 1Physikalisches Institut, Universität Bonn, Wegelerstraße 8, D-53115 Bonn, Germany — 2Laboratoire Kastler-Brossel, ENS/UPMC-Paris 6/CNRS, F-75005 Paris, France
We investigate the integration of fiber cavities into ion traps for use in quantum networks.
Up to now, fiber-cavities have been combined with trapped ions only in the infra-red spectral range. Since ions typically have their strongest dipole transition in the ultra-violet (UV), the extension of fiber cavities to work in the UV is important.
We present coupling of a single Ytterbium ion to a 150 µm long fiber-cavity, which is resonant with the electric dipole transition at 370 nm. We achieve a coherent coupling rate of a single ion to the cavity of about g/2π = 60 MHz, which exceeds previous realizations by more than one order of magnitude. Using the Purcell effect, we demonstrate single photon generation by continuous and pulsed ion excitation and investigate correlation between the photon polarization and the spin state of the ion.