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| Baillieul, Marion. |
| The development of middle-infrared (MIR) sensors for organic pollutants monitoring in the aquatic environment is currently a challenge of great importance. The mid-infrared sensor based on evanescent wave spectroscopy is a promising analytical tool for simultaneous detection and quantification of a variety of pollutants such as hydrocarbon compounds. Chalcogenide glasses are particularly well adapted for sensing applications due to their wide domain of transparence (up to 10-16 µm depending on their composition). The aims of this study are to synthetize chalcogenide thin films for developing mid-infrared optical integrated platforms and perform their functionalization with polymers in order to increase the sensor sensitivity. Among (GeSe2)100-x(Sb2Se3)x... |
| Tipo: Text |
Palavras-chave: Capteur optique; Moyen infrarouge; Verres de chalcogénures; ATR; BTEX; SEIRA; Optical sensing; Mid-infrared; Chalcogenide glasses; ATR; BTEX; SEIRA. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00499/61020/64422.pdf |
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| Baudet, Emeline; Gutierrez-arroyo, A.; Baillieul, Marion; Charrier, J.; Němec, P.; Bodiou, L.; Lemaitre, J.; Rinnert, Emmanuel; Michel, K.; Bureau, B.; Adam, J. L.; Nazabal, V.. |
| The detection of molecules dissolved in liquid medium can be envisaged by means of an optical integrated sensor operating in middle infrared range. The intended sensor is composed of a cladding and a guiding selenide sputtered layers transparent in middle infrared. Hence, Ge-Sb-Se thin films were selected in view of tailored refractive index contrast, successfully deposited by radio frequency magnetron sputtering and characterized. To maximize the evanescent field at a wavelength of 7.7 µm, a suitable selenide waveguide allowing measuring the optical transmitted power was designed by performing computer simulations based on the effective index method enabling single-mode propagation for a waveguide width between 8 and 12 µm. Selenide sputtered films were... |
| Tipo: Text |
Palavras-chave: Optical sensing and sensors; Mid-infrared; Integrated optics devices; Chalcogenide glasses; Thin films. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00389/50014/50603.pdf |
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| Baillieul, Marion; Baudet, Emeline; Michel, Karine; Moreau, Jonathan; Němec, Petr; Boukerma, Kada; Colas, Florent; Charrier, Joël; Bureau, Bruno; Rinnert, Emmanuel; Nazabal, Virginie. |
| he objective of this study is to demonstrate the successful functionalization of the surface of a chalcogenide infrared waveguide with the ultimate goal of developing an infrared micro-sensor device. First, a polyisobutylene coating was selected by testing its physico-chemical compatibility with a Ge-Sb-Se selenide surface. To simulate the chalcogenide platform infrared sensor, the detection of benzene, toluene, and ortho-, meta- and para-xylenes was efficaciously performed using a polyisobutylene layer spin-coated on 1 and 2.5 µm co-sputtered selenide films of Ge28Sb12Se60 composition deposited on a zinc selenide prism used for attenuated total reflection spectroscopy. The thickness of the polymer coating was optimized by attenuated total reflection... |
| Tipo: Text |
Palavras-chave: Optical infrared sensor; Chalcogenide glasses; Mid-infrared; Mono-aromatic hydrocarbons; Natural waters; BTEXs; PAHs. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00687/79947/82867.pdf |
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