Doppler-free Rydberg Spectroscopy in Warm Vapor
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866912921817186304 |
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| author | Glick, Jeremy Anderson, Brielle E. Nunley, T. Nathan Bingaman, Josiah Liu, Jian Jun Meyer, David H. Kunz, Paul D. |
| author_facet | Glick, Jeremy Anderson, Brielle E. Nunley, T. Nathan Bingaman, Josiah Liu, Jian Jun Meyer, David H. Kunz, Paul D. |
| contents | The common approach for producing Rydberg atoms in warm vapor cells is with lasers arranged in a counter-propagating, collinear configuration. Doppler effects in these configurations reduce the efficiency of excitation to the Rydberg state while also producing broadened spectral features. In this work, we demonstrate a three-laser Doppler-free excitation using laser beams whose k-vectors sum to zero, resulting in an enhancement in the Rydberg density and narrowed spectral features. A three-times enhancement to Rydberg density along with a near four-times reduction in spectroscopic line-widths are observed compared to a collinear configuration. This Doppler-free configuration could prove beneficial to Rydberg atomic technologies, such as electric field sensing with small volumes or deterministic photon sources. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_04504 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Doppler-free Rydberg Spectroscopy in Warm Vapor Glick, Jeremy Anderson, Brielle E. Nunley, T. Nathan Bingaman, Josiah Liu, Jian Jun Meyer, David H. Kunz, Paul D. Atomic Physics The common approach for producing Rydberg atoms in warm vapor cells is with lasers arranged in a counter-propagating, collinear configuration. Doppler effects in these configurations reduce the efficiency of excitation to the Rydberg state while also producing broadened spectral features. In this work, we demonstrate a three-laser Doppler-free excitation using laser beams whose k-vectors sum to zero, resulting in an enhancement in the Rydberg density and narrowed spectral features. A three-times enhancement to Rydberg density along with a near four-times reduction in spectroscopic line-widths are observed compared to a collinear configuration. This Doppler-free configuration could prove beneficial to Rydberg atomic technologies, such as electric field sensing with small volumes or deterministic photon sources. |
| title | Doppler-free Rydberg Spectroscopy in Warm Vapor |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2506.04504 |