A very compact (device area around 40 mu m(2)) optical ammonia sensor based on a microring resonator is presented in this work. Silicon- on- insulator technology is used in sensor design and a dye doped polymer is adopted as sensing material. The sensor exhibits a very good linearity and a minimum detectable refractive index shift of sensing material as low as 8x10(-5), with a detection limit around 4 parts per thousand.
|Autori interni:||DE LEONARDIS, Francesco|
|Titolo:||Ammonia Optical Sensing by Microring Resonators|
|Data di pubblicazione:||2007|
|Digital Object Identifier (DOI):||10.3390/s7112741|
|Appare nelle tipologie:||1.1 Articolo in rivista|