Abstract

A planar triplet of diffraction gratings is used to transform a single laser beam into a four-beam tetrahedral magneto-optical trap. This “flat” pyramid diffractor geometry is ideal for future microfabrication. We demonstrate the technique by trapping and subsequently sub-Doppler cooling ${}^{87}\text{Rb}$ atoms to $30\mathrm{\mu K}$.

© 2010 Optical Society of America

Sub-Doppler cooling of neutral atoms in a grating magneto-optical trap

J. Lee, J. A. Grover, L. A. Orozco, and S. L. Rolston
J. Opt. Soc. Am. B 30(11) 2869-2874 (2013)

Single-laser, one beam, tetrahedral magneto-optical trap

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Opt. Express 17(16) 13601-13608 (2009)

Λ-enhanced gray molasses in a tetrahedral laser beam geometry

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Sub-Doppler cooling of fermionic Hg isotopes in a magneto-optical trap

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Phase-space properties of magneto-optical traps utilising micro-fabricated gratings.

J. P. McGilligan, P. F. Griffin, E. Riis, and A. S. Arnold
Opt. Express 23(7) 8948-8959 (2015)