Mixture of Electromagnetically Induced Transparency and Autler–Townes Splitting in a Five-Level Atomic System
Zhang Xiao-Yun1, Wu Shan2, Li Hai-Chao3, †
       

(Color online) Imaginary part of the matrix element ρ 21 ( 1 ) for the Y-type system (red solid line) and its subsystems (black dashed-dotted line for LS3 and blue dashed line for LS4) as a function of the probe field detuning Δ p . The parameters are as follows:(a) Δ d = Δ s = 0, Ω d = 2γ21, Ω s = 0.8γ21, γ31 = γ41 = 0.1γ21, (b) Δ d = Δ s = 0, Ω d = 2γ21, Ω s = 0.8γ21, γ31 = 100γ41 = 0.1γ21, (c) Δ d = Δ s = 0, Ω d = Ω s = 0.7γ21, γ31 = γ41 = 0.2γ21, (d) Δ s = 0, Δ d = γ21, Ω d = 2γ21, Ω s = 0.8γ21, γ31 = 100γ41 = 0.1γ21.