Design and assembly of a cavity microscope with high numerical aperture for quantum simulations
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912644959567872 |
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| author | Bolognini, Gaia Stella Xue, Zeyang Eichenberger, Michael Alexander Sauerwein, Nick Orsi, Francesca Fedotova, Ekaterina Bhatt, Rohit Prasad Brantut, Jean-Philippe |
| author_facet | Bolognini, Gaia Stella Xue, Zeyang Eichenberger, Michael Alexander Sauerwein, Nick Orsi, Francesca Fedotova, Ekaterina Bhatt, Rohit Prasad Brantut, Jean-Philippe |
| contents | We present the design and assembly of a cavity microscope for quantum simulations with ultracold atoms. The system integrates a high-finesse optical cavity with a pair of high-numerical aperture lenses sharing a common optical axis, enabling simultaneous operation with light close-to-atomic resonance. The system keeps the advantages of a rigid, single-block structure holding the lenses and cavity together, and improves over existing designs by using most of the solid angle left free by the cavity mode for imaging and atomic manipulation purposes. The cavity has a length of \SI{19.786}{\milli\meter}, a finesse of \SI{2.35}{\times 10^4} and operates \SI{214}{\micro\meter} away from the concentric limit, deep in the strong coupling regime. The two lenses offer a numerical aperture of $0.52$ each and maximal optical access in all directions transverse to the cavity axis, compatible with applications in quantum-gas microscopes, micro-tweezer arrays or few-fermions systems, as well as future cavity-assisted quantum simulation protocols demanding sub-cavity-mode control of the atom-cavity coupling. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_10733 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Design and assembly of a cavity microscope with high numerical aperture for quantum simulations Bolognini, Gaia Stella Xue, Zeyang Eichenberger, Michael Alexander Sauerwein, Nick Orsi, Francesca Fedotova, Ekaterina Bhatt, Rohit Prasad Brantut, Jean-Philippe Quantum Gases Atomic Physics Instrumentation and Detectors Optics Quantum Physics We present the design and assembly of a cavity microscope for quantum simulations with ultracold atoms. The system integrates a high-finesse optical cavity with a pair of high-numerical aperture lenses sharing a common optical axis, enabling simultaneous operation with light close-to-atomic resonance. The system keeps the advantages of a rigid, single-block structure holding the lenses and cavity together, and improves over existing designs by using most of the solid angle left free by the cavity mode for imaging and atomic manipulation purposes. The cavity has a length of \SI{19.786}{\milli\meter}, a finesse of \SI{2.35}{\times 10^4} and operates \SI{214}{\micro\meter} away from the concentric limit, deep in the strong coupling regime. The two lenses offer a numerical aperture of $0.52$ each and maximal optical access in all directions transverse to the cavity axis, compatible with applications in quantum-gas microscopes, micro-tweezer arrays or few-fermions systems, as well as future cavity-assisted quantum simulation protocols demanding sub-cavity-mode control of the atom-cavity coupling. |
| title | Design and assembly of a cavity microscope with high numerical aperture for quantum simulations |
| topic | Quantum Gases Atomic Physics Instrumentation and Detectors Optics Quantum Physics |
| url | https://arxiv.org/abs/2505.10733 |