首页|Apparatus for producing single strontium atoms in an optical tweezer array
Apparatus for producing single strontium atoms in an optical tweezer array
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Apparatus for producing single strontium atoms in an optical tweezer array
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 108 s-1 at 5 mK for the three-dimensional blue MOT.This enables us to trap 2 × 106 88Sr atoms at 2 µK in a narrow-line red MOT with the 1 S0 → 3P1 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 min.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 experimental setup serves as an excellent reference for those engaged in experiments involving optical tweezer arrays,cold atom systems,and similar research.
optical tweezer arraysingle atomsisyphus cooling
文凯、陈辉锦、颜煦、任泽剑、何成东、Elnur Hajiyev、黄梓峰、Gyu-Boong Jo
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Microelectronics Thrust,The Hong Kong University of Science and Technology(Guangzhou),Guangzhou 511455,China
Department of Physics,The Hong Kong University of Science and Technology,Hong Kong 999077,China
optical tweezer array single atom sisyphus cooling
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