Magnetically Induced Atomic Transitions of the Potassium D2 Line

Sargsyan, A.; Klinger, Emmanuel; Leroy, Claude; Vartanyan, T. A.; Sarkisyan, D.

doi:10.1134/s0030400x19090236

Cited by 8 publications

(2 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interest in magnetically-induced transitions of alkali metal atoms is caused by the high probabilities, in wide ranges of external magnetic fields, that these transitions can reach, as well as by their large frequency shifts with respect to unperturbed atomic transitions [1][2][3][4][5][6][7]. According to the selection rules for transitions between the ground and excited hyperfine levels (in the dipole approximation), one must have ∆F = F e − F g = 0, ±1.…”

Section: Introductionmentioning

confidence: 99%

“…The probabilities of the transitions for which the condition ∆F = ±2 is satisfied are null at zero magnetic field, while a giant increase of their probabilities can occur in an external magnetic field. Such transitions of alkali metal atoms are referred to as magnetically induced (MI) transitions [4][5][6][7]. A striking example of a giant increase in probability, in particular, is the behavior of transitions F g = 3 → F e = 5 (seven transitions) of Cs D 2 line, transitions F g = 2 → F e = 4 (five transitions) of 85 Rb D 2 line or transitions F g = 1 → F e = 3 (three transitions) of 87 Rb D 2 line in an external magnetic field.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Circular dichroism in atomic vapors: magnetically induced transitions responsible for two distinct behaviors

Sargsyan,

Amiryan,

Tonoyan

et al. 2020

Preprint

View full text Add to dashboard Cite

Atomic transitions of alkali metals for which the condition F e − F g = ±2 is satisfied have null probability in a zero magnetic field, while a giant increase can occur when an external field is applied. Such transitions, often referred to as magnetically-induced (MI) transitions, have received interest because their high probabilities in wide ranges of external magnetic fields which, in some cases, are even higher than that of usual atomic transitions. Previously, the following rule was established: the intensities of MI transitions with ∆F = ±2 are maximum when using respectively σ ± radiation. Within the same ground state, the difference in intensity for σ + and σ − radiations can be significant, leading to magnetically induced circular dichroism (MCD), referred to as type-1. Here, we show that even among the strongest MI transitions, i.e originating from different ground states for σ + and σ − , the probability of MI transition with ∆F = +2 is always greater, which leads to another type of MCD. Our experiments are performed with a Cs-filled nanocell, where the laser is tuned around the D 2 line; similar results are expected with other alkali metals. Theoretical calculations are in excellent agreement with the experimental measurements.

show abstract