Lenci, L;
Marmugi, L;
Renzoni, F;
Gozzini, S;
Lucchesini, A;
Fioretti, A;
(2019)
Time-domain Ramsey-narrowed sub-kHz electromagnetically induced absorption in atomic potassium.
Journal of Physics B: Atomic, Molecular and Optical Physics
, 52
(8)
, Article 085002. 10.1088/1361-6455/ab0fc5.
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Abstract
The use of electromagnetically induced absorption (EIA) in sensing and metrology has been thus far hindered by saturation effects, which severely degrade its linewidth. Here we propose, and experimentally demonstrate, that time-dependent Ramsey spectroscopy in potassium vapour overcomes the detrimental effect of saturation. We observe sub-kHz Ramsey fringes, with full control of the EIA resonance characteristics. Combined with the efficient optical pumping associated to the K D1 line, the present work demonstrates an EIA scheme suitable for sensing and metrological applications.
| Type: | Article |
|---|---|
| Title: | Time-domain Ramsey-narrowed sub-kHz electromagnetically induced absorption in atomic potassium |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1361-6455/ab0fc5 |
| Publisher version: | https://doi.org/10.1088/1361-6455/ab0fc5 |
| Language: | English |
| Additional information: | Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| Keywords: | Electromagnetically induced absorption, Ramsey effect, Zeeman effect, Line shapes and shifts |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10070274 |
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