Документы

DOI

  • Arturs Cinins
  • Dmitry K. Efimov
  • Martins Bruvelis
  • Kaspars Miculis
  • Teodora Kirova
  • Nikolai N. Bezuglov
  • Igor I. Ryabtsev
  • Marcis Auzinsh
  • Aigars Ekers
We investigated the absence of certain bright peaks in Autler-Townes laser excitation spectra of alkali metal atoms. Our research revealed that these dips in the spectra are caused by a specific architecture of adiabatic (or ``laser-dressed'') states in hyperfine (HF) components. The dressed states' analysis pinpointed several cases where constructive and destructive interference between HF excitation pathways in a two-photon excitation scheme limits the available two-photon transitions. This results in a reduction of the conventional two-photon selection rule for the total angular momentum $F$, from $\Delta F= 0,\pm 1$ to $\Delta F\equiv 0$. Our discovery presents practical methods for selectively controlling the populations of unresolvable HF $F$-components of $ns_{1/2}$ Rydberg states in alkali metal atoms. Using numerical simulations with sodium and rubidium atoms, we demonstrate that by blocking the effects of HF interaction with a specially tuned auxiliary control laser field, the deviations from the ideal selectivity of the HF components population can be lower than $0.01\%$ for Na and $0.001\%$ for Rb atoms.
Язык оригиналаанглийский
Страницы1-19
Число страниц19
DOI
СостояниеОпубликовано - 5 дек 2023

ID: 114905912