Effects of static dc electric-field orientation on two-photon Rydberg electromagnetically induced transparency
Phys. Rev. A 113, 062619 – Published 17 June, 2026
DOI: https://doi.org/10.1103/tt72-pmdp
Abstract
We examine the influence of a static dc electric field on electromagnetically induced transparency (EIT) resonances that involve highly excited Rydberg states. Our focus is on how these resonances are altered when the relative orientation between the laser polarization and the external electric-field vectors is varied. We experimentally demonstrate characteristic variations in the amplitude of the Stark-split EIT resonances, which can be explained by the selection rules in various geometries. We also present a simplified semianalytical model that closely resembles the experimental observations. We use these findings to obtain information about the spatially inhomogeneous electric field, produced by a biased wire, using EIT fluorescence measurements that agrees with the expected angular dependencies. These results suggest that simultaneous analysis of frequency shifts and amplitudes of Rydberg EIT resonances may enable vector electrometry of electrostatic fields, which is necessary for many quantum sensing applications.
