Cavity enhanced atomic magnetometry
Atom sensing based on Faraday rotation is an indispensable method for precision measurements, universally suitable for both hot and cold atomic systems. Here we demonstrate an all-optical magnetometer where the optical cell for Faraday rotation spectroscopy is augmented with a low finesse cavity. Un...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Online Access: | https://hdl.handle.net/10356/81124 http://hdl.handle.net/10220/39055 |
| _version_ | 1826111975900315648 |
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| author | Crepaz, Herbert Ley, Li Yuan Dumke, Rainer |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Crepaz, Herbert Ley, Li Yuan Dumke, Rainer |
| author_sort | Crepaz, Herbert |
| collection | NTU |
| description | Atom sensing based on Faraday rotation is an indispensable method for precision measurements, universally suitable for both hot and cold atomic systems. Here we demonstrate an all-optical magnetometer where the optical cell for Faraday rotation spectroscopy is augmented with a low finesse cavity. Unlike in previous experiments, where specifically designed multipass cells had been employed, our scheme allows to use conventional, spherical vapour cells. Spherical shaped cells have the advantage that they can be effectively coated inside with a spin relaxation suppressing layer providing long spin coherence times without addition of a buffer gas. Cavity enhancement shows in an increase in optical polarization rotation and sensitivity compared to single-pass configurations. |
| first_indexed | 2024-10-01T02:59:35Z |
| format | Journal Article |
| id | ntu-10356/81124 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:59:35Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/811242023-02-28T19:29:12Z Cavity enhanced atomic magnetometry Crepaz, Herbert Ley, Li Yuan Dumke, Rainer School of Physical and Mathematical Sciences Atom sensing based on Faraday rotation is an indispensable method for precision measurements, universally suitable for both hot and cold atomic systems. Here we demonstrate an all-optical magnetometer where the optical cell for Faraday rotation spectroscopy is augmented with a low finesse cavity. Unlike in previous experiments, where specifically designed multipass cells had been employed, our scheme allows to use conventional, spherical vapour cells. Spherical shaped cells have the advantage that they can be effectively coated inside with a spin relaxation suppressing layer providing long spin coherence times without addition of a buffer gas. Cavity enhancement shows in an increase in optical polarization rotation and sensitivity compared to single-pass configurations. Published version 2015-12-11T08:43:25Z 2019-12-06T14:21:56Z 2015-12-11T08:43:25Z 2019-12-06T14:21:56Z 2015 Journal Article Crepaz, H., Ley, L. Y., & Dumke, R. (2015). Cavity enhanced atomic magnetometry. Scientific Reports, 5, 15448-. 2045-2322 https://hdl.handle.net/10356/81124 http://hdl.handle.net/10220/39055 10.1038/srep15448 26481853 en Scientific Reports This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ 7 p. application/pdf |
| spellingShingle | Crepaz, Herbert Ley, Li Yuan Dumke, Rainer Cavity enhanced atomic magnetometry |
| title | Cavity enhanced atomic magnetometry |
| title_full | Cavity enhanced atomic magnetometry |
| title_fullStr | Cavity enhanced atomic magnetometry |
| title_full_unstemmed | Cavity enhanced atomic magnetometry |
| title_short | Cavity enhanced atomic magnetometry |
| title_sort | cavity enhanced atomic magnetometry |
| url | https://hdl.handle.net/10356/81124 http://hdl.handle.net/10220/39055 |
| work_keys_str_mv | AT crepazherbert cavityenhancedatomicmagnetometry AT leyliyuan cavityenhancedatomicmagnetometry AT dumkerainer cavityenhancedatomicmagnetometry |