Hyperfine Paschen-Back regime realized in Rb nanocell

Armen Sargsyan (1) , Grant Hakhumyan (1, 2) , Claude Leroy (2) , Yevgenya Pashayan-Leroy (2) , Aram V. Papoyan (1) , David Sarkisyan (1)

1 IPR - Institute for Physical Research
2 ICB - Laboratoire Interdisciplinaire Carnot de Bourgogne

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 D1 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;87Rb 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.

Mots clés: Hyperfine; Paschen-Back; Rubidium; nanocell

Domaines: Physique Quantique [quant-ph]

Armen Sargsyan, Grant Hakhumyan, Claude Leroy, Yevgenya Pashayan-Leroy, Aram V. Papoyan, et al.. Hyperfine Paschen-Back regime realized in Rb nanocell. Optics Letters, 2012, 37 (8), pp.1379 - 1381. ⟨hal-00687006⟩