Laser cooling with a single laser beam and a planar diffractor

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 87Rb atoms to 30microKelvin.

3 pages, 4 figures

References in corpus (3)

• A cold atom pyramidal gravimeter with a single laser beam
• Single-laser, one beam, tetrahedral magneto-optical trap
• Integrated magneto-optical traps on a chip

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