Enhancement of electromagnetically induced transparency based Rydberg-atom electrometry through population repumping
Christopher L. Holloway, Nik Prajapati, Matt Simons, Samuel Berweger, Aly Artusio-Glimpse, Amy Robinson
We demonstrate the improvement of Rydberg electrometry based on electromagnetically induced transparency (EIT) through the use of a ground state repumping laser. Though there are many factors that limit the sensitivity of radio frequency field measurements, we show that the repumping technique can enhance the interaction strength while avoiding additional Doppler or power broadening. Through this method, we can increase the EIT amplitude by nearly double without an increase in width of the peak. A similar increase in amplitude without the repumping field is not possible for the probe due to saturation effects. We also find that a hard limit to our detection capabilities arise from the photon shot noise limit. Even so, we show an improvement on the sensitivity of the device by a factor of 2 in the presence of the repump field.
, Prajapati, N.
, Simons, M.
, Berweger, S.
, Artusio-Glimpse, A.
and Robinson, A.
Enhancement of electromagnetically induced transparency based Rydberg-atom electrometry through population repumping, Applied Physics Letters, [online], https://doi.org/10.1063/5.0069195, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=933094
(Accessed December 8, 2021)