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American Institute of Physics, Applied Physics Letters, 13(96), p. 134101

DOI: 10.1063/1.3373917

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A cold atom pyramidal gravimeter with a single laser beam

Journal article published in 2010 by Quentin Bodart, Franck Pereira Dos Santos ORCID, Sébastien Merlet, Nicola Malossi, F. Pereira Dos Santos, Philippe Bouyer, Arnaud Landragin
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We demonstrate a scheme for realizing a compact cold atom gravimeter. The use of a hollow pyramidal configuration allows to achieve all functions: trapping, interferometer and detection with a unique laser beam leading to a drastic reduction in complexity and volume. In particular, we demonstrate a relative sensitivity to acceleration of gravity (g) of 1.7 × 10-7 at one second, with a moderate laser power of 50 mW. This simple geometry combined to such a high sensitivity opens wide perspectives for practical applications (P. Bouyer and A. Landragin, patent n° FR2009/000252, 2009).