College of Physics, Jilin University, Changchun 130023, China.
Opt Lett. 2010 Mar 1;35(5):709-11. doi: 10.1364/OL.35.000709.
We study a four-level double-Lambda system with spontaneously generated coherence driven by a standing-wave coupling field. It is found that two well-developed photonic bandgaps with reflectivities of about 90% can be generated on the probe resonance in the presence of maximal spontaneously generated coherence. The induced double photonic bandgaps become, however, severely malformed when spontaneously generated coherence vanishes. Dynamic control of the double photonic bandgaps may be exploited to achieve a novel two-port double-channel routing scheme for weak light signals in quantum networks.
我们研究了一个由驻波耦合场驱动的具有自发相干的四能级双 Λ 系统。结果发现，在最大自发相干的情况下，在探测共振处可以产生两个具有约 90%反射率的完全发育的光子带隙。然而，当自发相干消失时，诱导的双光子带隙会严重变形。双光子带隙的动态控制可用于实现量子网络中弱光信号的新型两端口双通道路由方案。
