| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1245391 | Talanta | 2008 | 6 Pages |
Abstract
A single-mode TE0–TM0 optical planar waveguide ammonia sensor based on polyaniline/polymethyl methacrylate (PANI/PMMA) composite is designed and developed. The sensing properties of the photonic sensor to ammonia at room temperature are studied. A significant change is observed in the guided light output power of the sensor after it is exposed to ammonia gas. The metrological parameters (sensitivity, response time and recovery time) of the sensor are strongly influenced by the interaction length (length of sensing region). Compared with the conventional optical ammonia sensor based on absorption spectroscopy, the integrated optical sensor is more sensitive to ammonia.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
A. Airoudj, D. Debarnot, B. Bêche, F. Poncin-Epaillard,