Relationship between electromagnetically-induced transparency and Autler–Townes splitting in a Doppler-broadened system<xref ref-type="fn" rid="cpb150376fn1">*</xref>

Relationship between electromagnetically-induced transparency and Autler–Townes splitting in a Doppler-broadened system*

Pei Li-Ya†^a), Niu Jin-Yan^b), Wang Ru-Quan^c), Qu Yi-Zhi^a), Zuo Zhan-Chun^c), Wu Ling-An^c), Fu Pan-Ming‡^c)

Velocity dependence of (a) ɛ ₋, (b) imaginary part of , and (c) with ζ ₂ = 1, Ω ₂/ Γ ₁₀ = 5, Δ ₂/ Γ ₁₀ = 0, and Δ ₁/ Γ ₁₀ = 0 (solid curve), 1 (dashed curve), 2 (dotted curve), and 4 (dash-dotted curve). The resonant velocity ν _d corresponds to the crossing points of the curves ɛ ₋( ν ) with a line y = 0 (thin solid line) shown in panel (a). In panel (b) the maximum of Im with Δ ₁/ Γ ₁₀ = 4 is normalized to 1; while in panel (c) the maximum of with Δ ₁/ Γ ₁₀ = 2 is normalized to 1.