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Diffractive optic sensor for remote-point detection of ammonia

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Diffractive optic sensor for remote-point detection of ammonia
Meristoudi, A.
Karoutsos, V.
Βάϊνος, Νικόλαος A.
Vasileiadis, M.
Μούσδης, Γεώργιος Α.
Botsialas, A.
Athanasekos, L.
Alexandropoulos, D.
Άρθρο σε επιστημονικό περιοδικό
2010-05-01
Remote-point photonic sensors are fabricated and evaluated. They are based on nanocomposite thin films comprising NiCl2 nanocrystals embedded in sol-gel silica matrix and are patterned using direct UV laser microetching techniques to form surface relief structures, which exhibit environment sensitive optical diffraction effects. A strong response to ammonia is detected via the alteration of diffraction efficiency of its orders upon exposure to the analyte. Detection of ammonia in the 2 ppm level with a typical response time of about 30 s in the ambient, 50% RH 20 degrees C, room environment is demonstrated.
WASHINGTON
Οπτική. Φώς (EL)
Optics. Light (EN)
English
The Optical Society (OSA)
Optics Letters
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.el
National Hellenic Research Foundation (NHRF)
Helios - Repository of the National Hellenic Research Foundation (NHRF)



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