The performance of ring resonators, as any other optical device, has been analysed and it is the purpose of many recent studies, due to their multipurpose optic response. Ring resonators can work as filters, amplifiers, modulators, repeaters or multiplexers. Recently, optical sensors based on ring resonators are designed with high sensitivities for non-invasive diagnosis, both in vitro and in vivo. The inclusion of nanoantennas optical devices that concentrate and amplify the electromagnetic field could increase the optical ring devices sensitivity response. In this article, the inclusion of nanoantennas in the ring resonator performance is studied. For that purpose, a Finite Element Tool is used to perform 2D simulations. It is concluded that nanoantennas can improve the output ring resonators response, leading to more reliable results as the quality factor, the bandwidth and the extinction ratio. Moreover, the nanoantenna location in the devices gives more degrees of freedom to reach the desired responses, since it is also dependent on the nanoantennas’ structure.

与其他光学设备一样，环形谐振器的性能已经得到了分析，由于其多用途的光学响应，这是许多近期研究的目的。环形谐振器可以用作滤波器，放大器，调制器，转发器或多路复用器。近来，基于环形谐振器的光学传感器被设计为具有高灵敏度，用于体外和体内非侵入性诊断。包含集中并放大电磁场的纳米天线光学设备可以增加光学环形设备的灵敏度响应。在本文中，研究了在环形谐振器性能中包含纳米天线。为此，使用有限元工具执行2D模拟。结论是，纳米天线可以改善输出环形谐振器的响应，导致更可靠的结果，例如品质因数，带宽和消光比。此外，由于纳米天线还取决于纳米天线的结构，因此它们在设备中的位置具有更大的自由度，可以达到所需的响应。