Macroscopic effects in electromagnetically-induced transparency in a Doppler-broadened system*
Pei Li-Yaa), Niu Jin-Yanb), Wang Ru-Quanc), Qu Yi-Zhia), Wu Ling-Anc), Fu Pan-Mingc), Zuo Zhan-Chunc)
Fig.#cod#x00A0;6. Velocity dependence of a #cod#x025B; #cod#x00B1; and b the imaginary part of #cod#x03C7; nl for #cod#x03B6; 2 #cod#x003D; 1, G 2 #cod#x0393; 10 #cod#x003D; 5, #cod#x0394; 2 #cod#x0393; 10 #cod#x003D; 0, and #cod#x0394; 1 #cod#x0393; 10 #cod#x003D; 0 solid curve, 1 dashed curve, 2 dotted curve, and 4 dash-dotted curve. The resonant velocity v 2 correspond to the cross point of the curve #cod#x025B; #cod#x2212; v with a line y #cod#x003D; 0 thin solid line shown in panel a. In panel b the maximum of Im[ #cod#x03C7; nl ] with #cod#x0394; 1 #cod#x0393; 10 #cod#x003D; 4 is normalized to 1.