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Tunable optical analog to electromagnetically induced transparency in graphene-ring resonators system.
Scientific Reports ( IF 3.8 ) Pub Date : 2016-12-12 , DOI: 10.1038/srep38891
Yonghua Wang 1 , Chenyang Xue 1 , Zengxing Zhang 1 , Hua Zheng 1 , Wendong Zhang 1 , Shubin Yan 1
Affiliation  

The analogue of electromagnetically induced transparency in optical ways has shown great potential in optical delay and quantum-information technology due to its flexible design and easy implementation. The chief drawback for these devices is the bad tunability. Here we demonstrate a tunable optical transparency system formed by graphene-silicon microrings which could control the transparent window by electro-optical means. The device consists of cascaded coupled ring resonators and a graphene/graphene capacitor which integrated on one of the rings. By tuning the Fermi level of the graphene sheets, we can modulate the round-trip ring loss so that the transparency window can be dynamically tuned. The results provide a new method for the manipulation and transmission of light in highly integrated optical circuits and quantum information storage devices.

中文翻译:


石墨烯环谐振器系统中电磁感应透明度的可调谐光学模拟。



光学方式中的电磁感应透明模拟由于其灵活的设计和易于实现,在光延迟和量子信息技术中显示出巨大的潜力。这些设备的主要缺点是可调性差。在这里,我们展示了一种由石墨烯-硅微环形成的可调光学透明系统,它可以通过电光手段控制透明窗口。该器件由级联耦合环形谐振器和集成在其中一个环上的石墨烯/石墨烯电容器组成。通过调节石墨烯片的费米能级,我们可以调节往返环损耗,从而动态调节透明度窗口。该研究结果为高度集成的光电路和量子信息存储器件中的光操纵和传输提供了一种新方法。
更新日期:2016-12-14
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