Centre for Integrated Optoelectronics, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China.
Opt Lett. 2013 Apr 15;38(8):1349-51. doi: 10.1364/OL.38.001349.
We demonstrate ultrahigh-sensitivity silicon photonic sensors based on two cascaded double-ring resonators operating in transverse-magnetic mode. Both wavelength interrogation and intensity interrogation methods are experimentally investigated and the sensitivities reached 24,300 nm/RIU and 2430 dB/RIU, respectively. We also show that the double-ring sensors can be simply cascaded to realize simultaneous detection of multiple species, which is very promising for low-cost array applications.
我们展示了基于两个级联的双环谐振器的超高灵敏度硅光子传感器，这些谐振器工作在横磁模式下。实验研究了波长检测和强度检测两种方法，灵敏度分别达到了 24,300nm/RIU 和 2430dB/RIU。我们还表明，双环传感器可以简单地级联以实现多种物质的同时检测，这对于低成本的阵列应用非常有前景。
