Ultrarobust calibration of an optical lattice depth based on a phase shift
We report on a new method to calibrate the depth of an optical lattice. It consists in triggering the intrasite dipole mode of the cloud by a sudden phase shift. The corresponding oscillatory motion is directly related to the intraband frequencies on a large range of lattice depths. Remarkably, for...
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| creator | Cabrera-Gutiérrez, C Michon, E Brunaud, V Kawalec, T tun, A Arnal, M Billy, J Guéry-Odelin, D |
| description | We report on a new method to calibrate the depth of an optical lattice. It consists in triggering the intrasite dipole mode of the cloud by a sudden phase shift. The corresponding oscillatory motion is directly related to the intraband frequencies on a large range of lattice depths. Remarkably, for a moderate displacement, a single frequency dominates this oscillation for the zeroth and first order interference pattern observed after a sufficiently long time-of-flight. The method is robust against atom-atom interactions and the exact value of the extra external confinement of the initial trapping potential. |
| doi_str_mv | 10.48550/arxiv.1801.08784 |
| format | Article |
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| subjects | Dipoles Displacements (lattice) Optical lattices Phase shift Physics - Quantum Gases Physics - Quantum Physics |
| title | Ultrarobust calibration of an optical lattice depth based on a phase shift |
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