Title :
Novel Optochemical Sensors Based on Hollow Fibers and Single Walled Carbon Nanotubes
Author :
Cusano, Andrea ; Pisco, Marco ; Consales, Marco ; Cutolo, Antonello ; Giordano, Michele ; Penza, Michele ; Aversa, Patrizia ; Capodieci, Laura ; Campopiano, Stefania
Author_Institution :
Dept. of Eng., Sannio Univ., Benevento
Abstract :
In this letter, the feasibility of using hollow-core optical fibers (HOFs) integrated with carbon nanotubes for volatile organic compound (VOC) detection applications has been investigated. The Langmuir-Blodgett technique has been used in order to transfer single walled carbon nanotubes (SWCNTs) onto HOFs. Reflectance characterization of the obtained sensing probes has been carried out in the range 1520-1620 nm. Finally, the sensing capability of the HOF sensors has been investigated by exposure in a test chamber to traces of tetrahydrofuran. The preliminary results obtained demonstrate the capability of the novel HOF sensor to perform chemical detection of VOCs showing a good sensitivity and fast response times
Keywords :
carbon nanotubes; chemical sensors; fibre optic sensors; reflectivity; 1520 to 1620 nm; C; Langmuir-Blodgett technique; hollow-core optical fibers; optochemical sensors; reflectance; single walled carbon nanotubes; tetrahydrofuran; Carbon nanotubes; Chemical sensors; Gas detectors; Optical fiber sensors; Optical fibers; Probes; Reflectivity; Sensor phenomena and characterization; Testing; Volatile organic compounds; Carbon nanotubes; hollow-core fibers; optical fiber sensors; photonic bandgap (PBG) fibers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.885618
