Interleaved dual-species arrays of single atoms using a passive optical element and one trapping laser
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arXiv
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| Autori principali: | , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866915447791681536 |
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| author | Fang, Chengyu Miles, Jared Goldwin, Jonathan Lichtman, Martin Gillette, Matthew Bergdolt, Michael Deshpande, Sanket Norrell, Sam A. Huft, Preston Kats, Mikhail A. Saffman, Mark |
| author_facet | Fang, Chengyu Miles, Jared Goldwin, Jonathan Lichtman, Martin Gillette, Matthew Bergdolt, Michael Deshpande, Sanket Norrell, Sam A. Huft, Preston Kats, Mikhail A. Saffman, Mark |
| contents | We demonstrate trapping of individual rubidium (Rb) and cesium (Cs) atoms in an interleaved array of bright tweezers and dark bottle-beam traps, using a microfabricated optical element illuminated by a single laser beam and a 4F system with spatial filtering. Our approach exploits the opposite-sign dynamic polarizabilities of Rb and Cs, ensuring each species is exclusively trapped in either bright or dark sites. The passive optical mask creates optimal trap depths for both species using three transmittance levels while minimizing the optical phase difference, implemented using a variable-thickness absorbing layer of amorphous germanium. This trapping architecture achieves atom loading rates close to 50% while reducing system complexity compared to conventional methods using active optoelectronic components and/or multiple laser wavelengths. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_20261 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Interleaved dual-species arrays of single atoms using a passive optical element and one trapping laser Fang, Chengyu Miles, Jared Goldwin, Jonathan Lichtman, Martin Gillette, Matthew Bergdolt, Michael Deshpande, Sanket Norrell, Sam A. Huft, Preston Kats, Mikhail A. Saffman, Mark Atomic Physics Applied Physics Optics Quantum Physics We demonstrate trapping of individual rubidium (Rb) and cesium (Cs) atoms in an interleaved array of bright tweezers and dark bottle-beam traps, using a microfabricated optical element illuminated by a single laser beam and a 4F system with spatial filtering. Our approach exploits the opposite-sign dynamic polarizabilities of Rb and Cs, ensuring each species is exclusively trapped in either bright or dark sites. The passive optical mask creates optimal trap depths for both species using three transmittance levels while minimizing the optical phase difference, implemented using a variable-thickness absorbing layer of amorphous germanium. This trapping architecture achieves atom loading rates close to 50% while reducing system complexity compared to conventional methods using active optoelectronic components and/or multiple laser wavelengths. |
| title | Interleaved dual-species arrays of single atoms using a passive optical element and one trapping laser |
| topic | Atomic Physics Applied Physics Optics Quantum Physics |
| url | https://arxiv.org/abs/2412.20261 |