Effect of buffer gas influence on magnetically-induced transitions in 87^Rb atoms, D₂ line

Unusual, magnetically-induced (MI) transitions F_g = 1 → Fe = 3 of the 87^Rb atoms, D₂ lines, forbidden in zero magnetic field, but acquiring significant probabilities in magnetic fields > 500 G have been studied. The effect of the buffer gas of neon on MI transitions was studied using the process of resonant absorption of laser radiation in a nanocell (NC) with Rb atomic vapors with an NC thickness L = 390 nm and a buffer gas of neon with pressures of 6 and 20 Torr. The use of NC makes it possible to achieve high spectral resolution and selectively study MI transitions. It was found that the addition of neon to the cell leads to a decrease in the amplitude of the MI transition and its spectral broadening (for some optical processes, the addition of a buffer gas leads to an improvement in the parameters). The optimal power of a cw laser for the effective formation of the MI transitions was found to be 10 μW