Apparatus for producing single strontium atoms in an optical tweezer array
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866913493983166464 |
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| author | Wen, Kai Chen, Huijin Yan, Xu Ren, Zejian He, Chengdong Hajiyev, Elnur Wong, Preston Tsz Fung Jo, Gyu-Boong |
| author_facet | Wen, Kai Chen, Huijin Yan, Xu Ren, Zejian He, Chengdong Hajiyev, Elnur Wong, Preston Tsz Fung Jo, Gyu-Boong |
| contents | We outline an experimental setup for efficiently preparing a tweezer array of $^{88}$Sr atoms. Our setup uses permanent magnets to maintain a steady-state two-dimensional magneto-optical trap (MOT) which results in a loading rate of up to $10^{8}$ s$^{-1}$ at 5 mK for the three-dimensional blue MOT. This enables us to trap $2\times10^{6}$ $^{88}$Sr atoms at 2 $μ$K in a narrow-line red MOT with the $^{1}$S$_{0}$ $\rightarrow$ $^{3}$P$_{1}$ intercombination transition at 689 nm. With the Sisyphus cooling and pairwise loss processes, single atoms are trapped and imaged in 813 nm optical tweezers, exhibiting a lifetime of 2.5 minutes. We further investigate the survival fraction of a single atom in the tweezers and characterize the optical tweezer array using a release and recapture technique. Our platform paves the way for potential applications in atomic clocks, precision measurements, and quantum simulations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_05361 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Apparatus for producing single strontium atoms in an optical tweezer array Wen, Kai Chen, Huijin Yan, Xu Ren, Zejian He, Chengdong Hajiyev, Elnur Wong, Preston Tsz Fung Jo, Gyu-Boong Applied Physics We outline an experimental setup for efficiently preparing a tweezer array of $^{88}$Sr atoms. Our setup uses permanent magnets to maintain a steady-state two-dimensional magneto-optical trap (MOT) which results in a loading rate of up to $10^{8}$ s$^{-1}$ at 5 mK for the three-dimensional blue MOT. This enables us to trap $2\times10^{6}$ $^{88}$Sr atoms at 2 $μ$K in a narrow-line red MOT with the $^{1}$S$_{0}$ $\rightarrow$ $^{3}$P$_{1}$ intercombination transition at 689 nm. With the Sisyphus cooling and pairwise loss processes, single atoms are trapped and imaged in 813 nm optical tweezers, exhibiting a lifetime of 2.5 minutes. We further investigate the survival fraction of a single atom in the tweezers and characterize the optical tweezer array using a release and recapture technique. Our platform paves the way for potential applications in atomic clocks, precision measurements, and quantum simulations. |
| title | Apparatus for producing single strontium atoms in an optical tweezer array |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2409.05361 |