Standing-wave atom tweezer
We report on the experimental realization of a standing-wave atom tweezer (SWAT) by aligning tightly focused dipole laser beams from a commercial objective lens and a metalens on a chip. By independently tuning the laser intensities of the two beams, we demonstrate the controlled loading of multiple atoms into the SWAT. We systematically investigate the influence of the standing-wave potential modulation depth on single-atom loading dynamics and quantitatively estimate the number of atoms in the SWAT by calculating the fluorescence of trapped atoms. Our results show that the SWAT can trap a chain of more than 20 atoms with significantly suppressed atom collisions, exhibiting a lifetime exceeding 1 second. Our work presents a versatile platform for investigating atom dynamics in 1D optical lattices, enabling the study of collective atom-photon interactions and many-body physics in a highly controllable system.
Authors
- Chang‐Ling Zou (ORCID: https://orcid.org/0000-0003-2484-7292)
- Chun‐Hua Dong (ORCID: https://orcid.org/0000-0002-9408-6102)
- Zhu-Bo Wang (ORCID: https://orcid.org/0000-0003-4684-3428)
- Kun Huang (ORCID: https://orcid.org/0000-0002-9391-149X)
- Dong Zhao (ORCID: https://orcid.org/0000-0002-7337-9168)
- Yan‐Lei Zhang (ORCID: https://orcid.org/0000-0002-1057-3895)
- Aiping Liu (ORCID: https://orcid.org/0000-0002-2515-5522)
- Jun‐Jie Wang (ORCID: https://orcid.org/0000-0003-4545-3874)
- Guang-Jie Chen (ORCID: https://orcid.org/0009-0000-2318-3004)
- Guang‐Can Guo
Institutions
- University of Science and Technology of China (CN)
- Nanjing University of Posts and Telecommunications (CN)
Publication Details
- Journal
- Optics Express
- Published
- 2024-09-30
- DOI
- https://doi.org/10.1364/oe.538445
- Citations
- 3
- Primary Topic
- Cold Atom Physics and Bose-Einstein Condensates
- Type
- article
- Field-Weighted Citation Impact
- 1.01
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- Key Technologies Research and Development Program
- National Key Research and Development Program of China
- Fundamental Research Funds for the Central Universities