Real-time control of the periodicity of a standing wave: an optical accordion

Details Real-time control of the periodicity of a standing wave: an optical accordion Real-time control of the periodicity of a standing wave: an optical accordion

2008-03-18

arxiv.org/abs/0803.2733v1

Opt. Express 16, 5465-5470 (2008)

Physics

Quantum Physics

6 pages, 6 figures

Scientific paper

10.1364/OE.16.005465

We report an experimental method to create optical lattices with real-time control of their periodicity. We demonstrate a continuous change of the lattice periodicity from 0.96 $\mu$m to 11.2 $\mu$m in one second, while the center fringe only moves less than 2.7 $\mu$m during the whole process. This provides a powerful tool for controlling ultracold atoms in optical lattices, where small spacing is essential for quantum tunneling, and large spacing enables single-site manipulation and spatially resolved detection.

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