title: Temporal and Spatial Interference between Four-Wave Mixing and Six-Wave Mixing Channels.
abstract: Using phase control between four-wave mixing (FWM) and six-wave mixing (SWM) channels in a four-level atomic system, we demonstrate temporal and spatial interferences between these two nonlinear optical processes. Efficient and coexisting FWM and SWM signals are produced in the same electromagnetically induced transparency window via atomic coherence. The temporal interference has a femtosecond time scale corresponding to the optical transition frequency. Such studies of intermixing between different order nonlinear optical processes with a controllable phase delay can have important applications in high-precision measurements, coherence quantum control, and quantum information processing.
authors.affiliation: Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA and Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China.
authors.forename: Yanpeng
authors.initials: Y
authors.lastname: Zhang
authors.forename: Utsab
authors.initials: U
authors.lastname: Khadka
authors.forename: Blake
authors.initials: B
authors.lastname: Anderson
authors.forename: Min
authors.initials: M
authors.lastname: Xiao