Lossless formation of electromagnetically induced transparency in sodium atoms
Authors: Alzetta A., Cartaleva S., Gozzini S., Karaulanov T., Lucchesini A., Marinelli C., Moi L., Nasyrov K., Sarova V.
Autors Affiliation: IPCF-CNR Pisa;
Universita’ di Siena, Dipartamento di Fisica;
lnstitute of Electronics, BAS, Sofia, Bulgaria;
Institute of Automation and Electrometry, Novosibirsk, Russia.
Abstract: In this paper we propose a simple method for eliminating the population losses of MC resonances by involving all atoms of the Na ground state in the formation of the narrow coherent resonances observed in the fluorescence when scanning around zero value the applied magnetic field. As a result, dark resonances with a contrast up to 100% have been observed. Results are obtained in two different experimental configurations – using laser excitation of linear and circular polarization, leading to different population redistribution among Zeeman and hf levels. Theoretical analysis of the results is also presented. It is shown that at certain conditions complete optical pumping of atoms to levels F-g = 2, M-Fg = 2 or M-Fg = -2 can be achieved, which means complete orientation of the atoms.
Journal/Review: PROCEEDINGS OF SPIE
Volume: 5449 Pages from: 280 to: 291
KeyWords: Coherent population trapping; Electromagnetically-induced transparency; SodiumDOI: 10.1117/12.563180Citations: 2data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-12-05References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here