Figure 4
From: Strong Coherent Light Amplification with Double Electromagnetically Induced Transparency Coherences
Gain at δ ps = 0 vs (a) T at for different P s: 10 mW (blue circles), 20 mW (black squares); and (b) δ s with phase-locked (blue) and independent (black) signal and probe fields. (a) The atomic density is \(4\sim 10\times {10}^{11}\,{{\rm{cm}}}^{-3}\) with ToP rate 240~600 Hz, δ p = 10 MHz; (b) T at = 65 °C. Other parameters are the same as those in Fig. 2(b,d). The solid line represents the theory.
