Open AccessFour-wave mixing in a ladder configuration of warm 87Rb atoms: a theoretical study
Author(s) -
HeungRyoul Noh,
Han Seb Moon
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.416960
Subject(s) - four wave mixing , mixing (physics) , physics , optics , coupling (piping) , atomic physics , spectral line , electromagnetically induced transparency , field (mathematics) , signal (programming language) , magnetic field , laser , nonlinear optics , materials science , quantum mechanics , mathematics , computer science , pure mathematics , metallurgy , programming language
We present a theoretical study of the four-wave mixing (FWM) spectra of 5S 1/2 - 5P 3/2 - 5D 5/2 ladder-type transitions of 87 Rb atoms. The density matrix equations are solved by considering all the magnetic sublevels to calculate the FWM signals in the atomic vapor cell. These results are subsequently compared with the experimental results. We observe that the FWM signal propagating exactly opposite to the driving field is measured experimentally. Additionally, we demonstrate the effects of optical depth, laser linewidths, and the coupling field power on the FWM spectra. Finally, the origin of the dispersive-like FWM signal is investigated by intentionally varying the intrinsic atomic properties.