Application of Magnetically Induced Atomic Transitions Fg = 3→Fe = 1 of Rubidium D2-Lines in Magnetic Fields

Abstract

   Magnetically induced (MI) transitions of 85Rb atoms, D2 lines 5S1/2–5P3/2, Fg=3→Fe=1 with circular polarization σ, the intensities of which are zero in a zero magnetic field, have been studied experimentally and theoretically, but in magnetic fields at 0.5–1 kG, the intensities of the transitions noted above increase significantly. To implement the process of electromagnetic-induced transparency (EIT) in a strong magnetic field of ~1 kG MI, the Fg=3→Fe=1 transition was used for the first time at the probe radiation frequency, the frequency of the coupling radiation is resonant with the Fg=2→Fе=1 transition. The generated EIT resonance is located on the low-frequency wing of the spectrum. It is shown that EIT resonance is formed only when the probe and coupling radiations have the same circular polarization σ. This is true for all cases when MI transitions Fе – Fg = ΔF = –2 are used.