Magnetic field--induced modification of selection rules for Rb D${}_2$ line monitored by selective reflection from a vapor nanocell

Abstract

Magnetic field-induced giant modification of the probabilities of five transitions of $5S_{1/2},F_g=2\to 5P_{3/2},F_e=4$ of ${}^{85}$Rb and three transitions of $5S_{1/2},F_g=1\to 5P_{3/2},F_e=3$ of ${}^{87}$Rb forbidden by selection rules for zero magnetic field has been observed experimentally and described theoretically for the first time. For the case of excitation with circularly-polarized (${\sigma }^{+}$) laser radiation, the probability of $F_g=2,m_F=-2\to F_e=4,m_F=-1$ transition becomes the largest among the seventeen transitions of ${}^{85}$Rb $F_g=2\to F_e=1,2,3,4$ group, and the probability of $F_g=1,m_F=-1\to F_e=3,m_F=0$ transition becomes the largest among the nine transitions of ${}^{87}$Rb $F_g=1\to F_e=0,1,2,3$ group, in a wide range of magnetic field 200 -- 1000 G. Complete frequency separation of individual Zeeman components was obtained by implementation of derivative selective reflection technique with a 300 nm-thick nanocell filled with Rb, allowing formation of narrow optical resonances. Possible applications are addressed. The theoretical model is perfectly consistent with the experimental results.

6 pages, 5 figures

References in corpus (4)

• An optical isolator using an atomic vapor in the hyperfine Paschen-Back regime
• Decoupling of hyperfine structure of Cs $D_1$ line in strong magnetic field studied by selective reflection from a nanocell
• Complete hyperfine Paschen-Back regime at relatively small magnetic fields realized in Potassium nano-cell
• Atomic transitions of Rb, $D_2$ line in strong magnetic fields: hyperfine Paschen-Back regime

Cited by in corpus (7)

• Proof of the feasibility of a nanocell-based wide-range optical magnetometer
• Hyperfine Paschen-Back regime of Potassium D${}_2$ line observed by Doppler-free spectroscopy
• Sub-Doppler spectra of sodium $D$ lines in a wide range of magnetic field: theoretical study
• Features of Magnetically-induced atomic transitions of Rb D${}_1$ line studied by Doppler-free method based on the second derivative of the absorption spectra
• New standard magnetic field values determined by cancellations of ${}^{85}\text{Rb}$ and ${}^{87}\text{Rb}$ atomic vapors $5{}^2{S}_{1/2}\to 6{}^2{P}_{1/2,3/2}$ transitions
• Transition cancellations of ${}^{87}$Rb and ${}^{85}$Rb atoms in a magnetic field setting new standards
• Revisited theory of selective reflection from a dilute Fabry-Perot interferometer