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APS

A multiple 2D-MOT system as a compact cold atom beam source

Jaime Ramirez-Serrano, Nathan E. Lundblad, Nan Yu, James M. Kohel, Robert J. Thompson, Lute Maleki

Published May 1, 2003• 0 citations
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We present a compact optical delivery design for a 2D+ MOT which is used in conjunction with a magnetic assembly and a commercial vacuum piece to create a standardised cold atom source. The design provides a plug-and-play system, free of optical alignment, capable of producing an atomic flux of >1e9 atoms per second with <50mW of laser power. The dimensions of the system are 67mm x 67mm x 112mm (W x H x L), where such compactness is achieved through a fixed optical design, additive manufacturing techniques, and a novel beam expansion method which forms a multiply split cylindrical beam.

•Oct 4, 2020•0 citations
A compact cold atom beam source based on a multistage two-dimensional magneto-optical trap (MOT) has been demonstrated and characterized. The multiple-stage design greatly reduces the overall size of the source apparatus while providing a high flux of atoms. The cold atom beam was used to load a separate MOT in ultrahigh vacuum, and we obtained an actual trap loading rate of 1.5 x 109 atoms/s while using only 20 mW of total laser power for the source. The entire source apparatus, including optics, can fit into a 4 cm x 4 cm x 13 cm volume.
We present a compact optical delivery design for a 2D+ MOT which is used in conjunction with a magnetic assembly and a commercial vacuum piece to create a standardised cold atom source. The design provides a plug-and-play system, free of optical alignment, capable of producing an atomic flux of >1e9 atoms per second with <50mW of laser power. The dimensions of the system are 67mm x 67mm x 112mm (W x H x L), where such compactness is achieved through a fixed optical design, additive manufacturing techniques, and a novel beam expansion method which forms a multiply split cylindrical beam.