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arXiv · 2005.05818

Laser cooling in a chip-scale platform

J. P. McGilligan·K. R. Moore·A. Dellis·G. D. Martinez·E. de Clercq·P. F. Griffin·A. S. Arnold·E. Riis·R. Boudot·J. Kitching
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Abstract

Chip-scale atomic devices built around micro-fabricated alkali vapor cells are at the forefront of compact metrology and atomic sensors. We demonstrate a micro-fabricated vapor cell that is actively-pumped to ultra-high-vacuum (UHV) to achieve laser cooling. A grating magneto optical trap (GMOT) is incorporated with the 4 mm-thick Si/glass vacuum cell to demonstrate the feasibility of a fully-miniaturized laser cooling platform. A two-step optical excitation process in rubidium is used to overcome surface-scatter limitations to the GMOT imaging. The unambiguous miniaturization and form-customizability made available with micro-fabricated UHV cells provide a promising platform for future compact cold-atom sensors.

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J. P. McGilligan, K. R. Moore, A. Dellis, G. D. Martinez, E. de Clercq, P. F. Griffin, A. S. Arnold, E. Riis, R. Boudot, J. Kitching. 2020-05-12. Laser cooling in a chip-scale platform. https://doi.org/10.1063/5.0014658

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