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.
Ammonia Optical Sensing by Microring Resonators / Passaro, Vittorio; Dell'Olio, Francesco; DE LEONARDIS, Francesco. - In: SENSORS. - ISSN 1424-8220. - 7:11(2007), pp. 2741-2749. [10.3390/s7112741]
Ammonia Optical Sensing by Microring Resonators
PASSARO, Vittorio;Dell'Olio, Francesco;DE LEONARDIS, Francesco
2007-01-01
Abstract
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.File in questo prodotto:
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