title: Hyperfine Paschen-Back regime realized in Rb nanocell.
abstract: A simple and efficient scheme based on a one-dimensional nanometric-thin cell filled with Rb and strong permanent ring magnets allows direct observation of the hyperfine Paschen-Back regime on the D(1) line in the 0.5-0.7 T magnetic field. Experimental results are perfectly consistent with the theory. In particular, with σ(+) laser excitation, the slopes of the B-field dependence of frequency shifts for all 10 individual transitions of (85,87)Rb are the same and equal to 18.6 MHz/mT. Possible applications for magnetometry with submicron spatial resolution and tunable atomic frequency references are discussed.
authors.affiliation: Institute for Physical Research, NAS of Armenia, Ashtarak-2, 0203, Armenia.
authors.forename: Armen
authors.initials: A
authors.lastname: Sargsyan
authors.forename: Grant
authors.initials: G
authors.lastname: Hakhumyan
authors.forename: Claude
authors.initials: C
authors.lastname: Leroy
authors.forename: Yevgenya
authors.initials: Y
authors.lastname: Pashayan-Leroy
authors.forename: Aram
authors.initials: A
authors.lastname: Papoyan
authors.forename: David
authors.initials: D
authors.lastname: Sarkisyan