Prof Andrew Steane: Publications

Relativity made relatively easy

Oxford U.P., 2012

Background-free detection of trapped ions

(2011)

Authors:

NM Linke, DTC Allcock, DJ Szwer, CJ Ballance, TP Harty, HA Janacek, DN Stacey, AM Steane, DM Lucas

Reduction of heating rate in a microfabricated ion trap by pulsed-laser cleaning

ArXiv 1110.1486 (2011)

Authors:

DTC Allcock, L Guidoni, TP Harty, CJ Ballance, MG Blain, AM Steane, DM Lucas

Abstract:

Laser-cleaning of the electrodes in a planar micro-fabricated ion trap has been attempted using ns pulses from a tripled Nd:YAG laser at 355nm. The effect of the laser pulses at several energy density levels has been tested by measuring the heating rate of a single 40Ca+ trapped ion as a function of its secular frequency. A reduction of the electric-field noise spectral density by ~50% has been observed and a change in the frequency dependence also noticed. This is the first reported experiment where the "anomalous heating" phenomenon has been reduced by removing the source as opposed to reducing its thermal driving by cryogenic cooling. This technique may open the way to better control of the electrode surface quality in ion microtraps.

Reduction of heating rate in a microfabricated ion trap by pulsed-laser cleaning

(2011)

Authors:

DTC Allcock, L Guidoni, TP Harty, CJ Ballance, MG Blain, AM Steane, DM Lucas

Heating rate and electrode charging measurements in a scalable, microfabricated, surface-electrode ion trap

(2011)

Authors:

DTC Allcock, TP Harty, HA Janacek, NM Linke, CJ Ballance, AM Steane, DM Lucas, RL Jarecki, SD Habermehl, MG Blain, D Stick, DL Moehring

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