Faraday Effect in Rubidium Atomic Layers Thinner than 100 nm
Affiliation auteurs | !!!! Error affiliation !!!! |
Titre | Faraday Effect in Rubidium Atomic Layers Thinner than 100 nm |
Type de publication | Journal Article |
Year of Publication | 2019 |
Auteurs | Sargsyan A., Amiryan A., Sarkisyan D. |
Journal | JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS |
Volume | 128 |
Pagination | 341-346 |
Date Published | MAR |
Type of Article | Article |
ISSN | 1063-7761 |
Résumé | The interaction of rubidium atoms with sapphire cell windows at an interwindow distance L = 40-100 nm is studied. For studies, we used the Faraday rotation (FR) effect (rotation of the plane of radiation polarization in a magnetic field) in a thin rubidium atom vapor column for D-1,D- 2 lines. When L decreases from 100 to 40 nm, a red shift of the FR signal frequency is detected: it increases from 10 to 250 MHz, and the broadening of the low-frequency wing increases to 1 GHz. The atomic transition F-g = 3 F-e = 2 for the D-1 line of Rb-85 is shown to be convenient for such investigations, since it can be spectrally separated from other strongly broadened atomic transitions. Coefficients C-3, which characterize the atom-surface interaction for the D-1 and D-2 lines of Rb, are determined. An additional red frequency shift takes place at a nanocell thickness L < 100 nm when the Rb atom density increases, and this shift is absent at large L. A practical application of an FR signal for measuring strong magnetic fields of several kilogausses is described. |
DOI | 10.1134/S1063776119020249 |