Jin Xueying, Dong Yongchao, Wang Keyi
Opt Express. 2016 Dec 26;24(26):29773-29780. doi: 10.1364/OE.24.029773.
We experimentally and theoretically demonstrate electromagnetically induced transparency (EIT)-like and Fano resonance in a single quasi-cylindrical microresonator (QCMR). Stable controlling of the EIT and Fano resonance lineshapes can be achieved by vertically moving the resonator along its axis while in touch with the tapered fiber. Moreover, by horizontally scanning the coupling point along the tapered fiber, asymmetric Fano resonances of the transmission spectra are observed and can be engineered to vary periodically. Interestingly, the two different kinds of mechanisms that induce the Fano or EIT resonances can work on the same mode simultaneously. Our device offers a stable platform for controlling the EIT and Fano resonances and holds unique potential in all-optical switching, quantum information processing and sensitivity-enhanced sensing applications.
我们通过实验和理论证明了在单个准圆柱形微谐振器（QCMR）中存在类电磁诱导透明（EIT）和法诺共振。当谐振器与锥形光纤接触时，沿其轴垂直移动谐振器，可实现对EIT和法诺共振线形的稳定控制。此外，通过沿锥形光纤水平扫描耦合点，可观察到传输光谱的非对称法诺共振，并且可以设计使其周期性变化。有趣的是，诱导法诺或EIT共振的两种不同机制可以同时作用于同一模式。我们的器件为控制EIT和法诺共振提供了一个稳定的平台，在全光开关、量子信息处理和灵敏度增强传感应用中具有独特的潜力。
