Rydberg atom-based microwave electrometry using polarization spectroscopy
Abstract In this study, we investigated Rydberg atom-based microwave (MW) electrometry using polarization spectroscopy in a room-temperature vapor cell. By measuring Autler-Townes splitting in the electromagnetically induced transparency (EIT) spectrum, we determined that the minimum measurable MW electric field is approximately five times lower than conventional EIT techniques. The results are well reproduced by a full optical Bloch equation model, which takes into account all the hyperfine levels involved. Subsequently, the EIT setup was used to characterize a custom MW cylindrical lens, which increases the field at the focus by a factor of three, decreasing the minimum measurable MW electric field by the same amount. Our results indicate that the combination of polarization spectroscopy and a MW lens may enhance MW electrometry, and may allow its use as a secondary standard.
Authors
- Reginaldo de Jesus Napolitano (ORCID: https://orcid.org/0000-0001-8745-5785)
- Vinícius M. Pepino (ORCID: https://orcid.org/0000-0003-2481-1636)
- Naomy Duarte Gomes (ORCID: https://orcid.org/0000-0002-0409-461X)
- Luís Gustavo Marcassa (ORCID: https://orcid.org/0000-0003-4047-8984)
- Daniel Varela Magalhães (ORCID: https://orcid.org/0000-0002-1850-3103)
- J. Kondo (ORCID: https://orcid.org/0000-0002-1286-6501)
- Ben‐Hur V. Borges (ORCID: https://orcid.org/0000-0003-3438-8894)
- Manuel Alejandro Lefrán Torres (ORCID: https://orcid.org/0000-0002-3203-4868)
Institutions
- Universidade Federal de São Carlos (BR)
- Universidade de São Paulo (BR)
- Universidade Federal de Santa Catarina (BR)
Publication Details
- Journal
- Journal of Physics B Atomic Molecular and Optical Physics
- Published
- 2024-10-22
- DOI
- https://doi.org/10.1088/1361-6455/ad8a34
- Citations
- 2
- Primary Topic
- Cold Atom Physics and Bose-Einstein Condensates
- Type
- article
- Field-Weighted Citation Impact
- 0.68
Funders
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Army Research Office