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arXiv · 0803.2733

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

T. C. Li·H. Kelkar·D. Medellin·M. G. Raizen
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Abstract

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 $μ$m to 11.2 $μ$m in one second, while the center fringe only moves less than 2.7 $μ$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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T. C. Li, H. Kelkar, D. Medellin, M. G. Raizen. 2008-03-18. Real-time control of the periodicity of a standing wave: an optical accordion. https://doi.org/10.1364/oe.16.005465

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