A dynamic magneto-optical trap for atom chips
A dynamic magneto-optical trap for atom chips
We describe a dynamic magneto-optical trap (MOT) suitable for the use with vacuum systems in which optical access is limited to a single window. This technique facilitates the long-standing desire of producing integrated atom chips, many of which are likely to have severely restricted optical access compared with conventional vacuum chambers. This 'switching-MOT' relies on the synchronized pulsing of optical and magnetic fields at audio frequencies. The trap's beam geometry is obtained using a planar mirror surface, and does not require a patterned substrate or bulky optics inside the vacuum chamber. Central to the design is a novel magnetic field geometry that requires no external quadrupole or bias coils which leads toward a very compact system. We have implemented the trap for 85Rb and shown that it is capable of capturing 2 million atoms and directly cooling below the Doppler temperature.
Rushton, Joseph
d0608985-e812-4608-ae2a-886dc7f8a60b
Roy, Ritayan
b73b6155-b144-48c3-8eb6-cffe00e385ef
Bateman, James
05b8f150-3d00-49f6-bf35-3d535b773b53
Himsworth, Matt
24e9b896-b4d3-40f7-8047-82a38efa4898
9 November 2016
Rushton, Joseph
d0608985-e812-4608-ae2a-886dc7f8a60b
Roy, Ritayan
b73b6155-b144-48c3-8eb6-cffe00e385ef
Bateman, James
05b8f150-3d00-49f6-bf35-3d535b773b53
Himsworth, Matt
24e9b896-b4d3-40f7-8047-82a38efa4898
Rushton, Joseph, Roy, Ritayan, Bateman, James and Himsworth, Matt
(2016)
A dynamic magneto-optical trap for atom chips.
New Journal of Physics, 18, [113020].
(doi:10.1088/1367-2630/18/11/113020).
Abstract
We describe a dynamic magneto-optical trap (MOT) suitable for the use with vacuum systems in which optical access is limited to a single window. This technique facilitates the long-standing desire of producing integrated atom chips, many of which are likely to have severely restricted optical access compared with conventional vacuum chambers. This 'switching-MOT' relies on the synchronized pulsing of optical and magnetic fields at audio frequencies. The trap's beam geometry is obtained using a planar mirror surface, and does not require a patterned substrate or bulky optics inside the vacuum chamber. Central to the design is a novel magnetic field geometry that requires no external quadrupole or bias coils which leads toward a very compact system. We have implemented the trap for 85Rb and shown that it is capable of capturing 2 million atoms and directly cooling below the Doppler temperature.
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NJP-105560 resubmission.pdf
- Accepted Manuscript
Text
Rushton_2016_New_J._Phys._18_113020
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More information
Accepted/In Press date: 17 October 2016
e-pub ahead of print date: 9 November 2016
Published date: 9 November 2016
Additional Information:
Funded by EPSRC: Quantum Technology Hub for Sensors and Metrology (EP/M013294/1)
Organisations:
Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 401862
URI: http://eprints.soton.ac.uk/id/eprint/401862
PURE UUID: 79f85bb6-6afd-43e3-928e-68c1425e70ba
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Date deposited: 24 Oct 2016 14:18
Last modified: 15 Mar 2024 02:57
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Contributors
Author:
Joseph Rushton
Author:
Ritayan Roy
Author:
James Bateman
Author:
Matt Himsworth
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