Spectral features of electromagnetically induced absorption in 85 Rb atoms
Hafeez-ur Rehman, Muhammad Adnan, Heung‐Ryoul Noh +1 more
Abstract We present theoretical and experimental studies of electromagnetically induced absorption (EIA) for the transition of 85 Rb-D2 line. From the results calculated by solving time-dependent density-matrix equations including the optical and Zeeman coherences connected via three-photon interactions, the EIA signals have ultra-narrow feature in low powers of coupling beam in both same- and orthogonal-polarization configurations for both stationary and thermal atoms. However, the ultra-narrow EIA signals from high powers of coupling laser beam still remained in the ultra-narrow state only in the same-polarization configuration for thermal atoms. The calculated results match well with experimental results except ultra-narrow EIA region considering linewidths of two separate coupling and probe lasers.
Journal of Physics B Atomic Molecular and Optical Physics•Apr 17, 2015•12 citations