基于微环谐振器的氨光学传感

Passaro Vittorio M N, Dell'Olio Francesco, De Leonardis Francesco

Photonics Research Group, Dipartimento di Elettrotecnica ed Elettronica, Politecnico di Bari, via Edoardo Orabona n. 4, 70125 Bari, Italy.

Photonics Research Group, Dipartimento di Ingegneria dell'Ambiente e per lo Sviluppo Sostenibile, Politecnico di Bari, viale del Turismo n. 8, 74100 Taranto, Italy.

Sensors (Basel). 2007 Nov 15;7(11):2741-2749. doi: 10.3390/s7112741.

A very compact (device area around 40 μm²) optical ammonia sensor based on amicroring resonator is presented in this work. Silicon-on-insulator technology is used insensor design and a dye doped polymer is adopted as sensing material. The sensor exhibitsa very good linearity and a minimum detectable refractive index shift of sensing materialas low as 8x10, with a detection limit around 4 ‰.

本文介绍了一种基于微环谐振器的非常紧凑（器件面积约40μm²）的光学氨传感器。传感器设计采用绝缘体上硅技术，并采用染料掺杂聚合物作为传感材料。该传感器具有非常好的线性度，传感材料的最小可检测折射率变化低至8×10⁻⁶，检测限约为4‰。