Comparative Study of Light Manipulation in Three-Level Systems Via Spontaneously Generated Coherence and Relative Phase of Laser Fields *

Nguyen Huy Bang,Le Nguyen Mai Anh,Nguyen Tien Dung,Le Van Doai

Fig. 5 (Color online) Variations of n$_{g}$versus$\Delta{}$$_{p}$ for different values of $\varphi{}$ = 0 (solid line),$\varphi{}$ = $\pi{}$/2 (dot-dashed line), $\varphi{}$ = $\pi{}$ (dashed line),and $\varphi{}$ = 3$\pi{}$/2 (dotted line) when $\eta{}$ = 1, p = 0.9,$\Delta_{c}$ = 0, $G_{p}$= 5$\gamma{}$,$G_{c}$ = 10$\gamma{}$: (a) $\Lambda{}$-type system, (b) Ladder-type system, and (c) V-type system.