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- ItemAn ion trap built with photonic crystal fibre technology([S.l.] : American Institute of Physics, 2015) Lindenfelser, F.; Keitch, B.; Kienzler, D.; Bykov, D.; Uebel, P.; Schmidt, M.A.; Russell, P.St.J.; Home, J.P.We demonstrate a surface-electrode ion trap fabricated using techniques transferred from the manufacture of photonic-crystal fibres. This provides a relatively straightforward route for realizing traps with an electrode structure on the 100 micron scale with high optical access. We demonstrate the basic functionality of the trap by cooling a single ion to the quantum ground state, allowing us to measure a heating rate from the ground state of 787 ± 24 quanta/s. Variation of the fabrication procedure used here may provide access to traps in this geometry with trap scales between 100 μm and 10 μm