Fig. 4 | Scientific Reports

Fig. 4

From: Azimuthally dependent absorption and gain in an atomic system with spontaneously generated coherence controlled by an optical vortex field

Fig. 4

Transverse distributions of the imaginary part of \(\rho _{31}^{(1)}(x,y)\) for different probe detunings \(\Delta _{p}\): (a) \(\Delta _{p}=0.1\gamma\), (b) \(\Delta _{p}=1\gamma\), (c) \(\Delta _{p}=2\gamma\), (d) \(\Delta _{p}=5\gamma\). The OAM number \(l=1\). Other parameters: \(r=0.1\gamma\), \(\varOmega _{p0}=0.1\gamma\), \(\varOmega _{c0}=10\gamma\), \(\Delta _{c}=0\), \(\gamma _{1}=\gamma _{2}=\gamma\), \(\eta =1\), \(\varTheta =\pi /4\).

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