title: Modulating the multi-wave mixing processes via the polarizable dark states.
abstract: We have observed multi-wave mixing (MWM) processes in reversed-Y (RY) type system in 87Rb atoms with electromagnetically induced transparency (EIT) windows at different laser polarization configurations. Interesting rules of changing the MWM processes and EIT profiles are obtained. We have found that the degenerate Zeeman sublevels and their dressed-state effects are responsible for these observed phenomena. Polarizable dark states are used to describe the multi-level dressed states. The experimental data are in good agreement with the results from the theoretical calculation that takes into account all the 16 Zeeman sublevels in the RY system.
authors.affiliation: Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Huaibin
authors.initials: H
authors.lastname: Zheng
authors.forename: Yanpeng
authors.initials: Y
authors.lastname: Zhang
authors.forename: Utsab
authors.initials: U
authors.lastname: Khadka
authors.forename: Ruimin
authors.initials: R
authors.lastname: Wang
authors.forename: Changbiao
authors.initials: C
authors.lastname: Li
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Nie
authors.forename: Min
authors.initials: M
authors.lastname: Xiao