Time-domain Ramsey-narrowed sub-kHz electromagnetically induced absorption in atomic potassium
Year: 2019
Authors: Lenci Lorenzo; Marmugi Luca; Renzoni Ferruccio; Gozzini Silvia; Lucchesini Alessandro; Fioretti Andrea
Autors Affiliation: Facultad de Ingeniería, Instituto de Física, Universidad de la República, J. Herrera y Reissig 565, 11300 Montevideo, Uruguay;
Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom;
Istituto Nazionale di Ottica, INO-CNR, Sede Secondaria di Pisa, Via Moruzzi 1, I-56124 Pisa, Italy.
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 D-1 line, the present work demonstrates an EIA scheme suitable for sensing and metrological applications.
Journal/Review: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume: 52 (8) Pages from: 085002_1 to: 085002_7
More Information: This work was supported by the Royal Society International Exchanges Grant “MAGICA” (IE160163), and partially funded by the Engineering and Physical Sciences Research Council (EPSRC, EP/R011745/1).
Open Access Paper WOS:000463196500001 Article Number:085002 Published:APR 28 2019KeyWords: electromagnetically induced absorption, Zeeman effect, line shapes and shifts, Ramsey fringes
DOI: 10.1088/1361-6455/ab0fc5Citations: 7data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-04-14References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here