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Development of integrated platform based on chalcogenides for sensing applications in the mid-infrared
Author(s): Aldo Gutierrez-Arroyo; Loïc Bodiou; Jonathan Lemaitre; Emeline Baudet; Marion Baillieul; Isabelle Hardy; Celine Caillaud; Florent Colas; Kada Boukerma; Emmanuel Rinnert; Karine Michel; Bruno Bureau; Virginie Nazabal; Joël Charrier
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Paper Abstract

Mid-Infrared (mid-IR) spectral range, spanning from 2 μm to 20 μm, is ideal for chemical sensing using spectroscopy thanks to the presence of vibrational absorption bands of many liquid and gas substances in this wavelength range. Indeed, mid-IR spectroscopy allows simultaneous qualitative and quantitative analysis by, respectively, identifying molecules from their spectral signature and relating the concentrations of different chemical agents to their absorption coefficient according to Beer-Lambert law. In the last years, photonic integrated sensors based on mid-IR spectroscopy have emerged as a cheap, accurate, and compact solution that would enable continuous real-time on-site diagnostics and monitoring of molecular species without the need to collect samples for off-site measurements. Here, we report the design, processing and characterization of a photonic integrated transducer based on selenide ridge waveguides. Evanescent wave detection of chemical substances in liquid phase (isopropyl alcohol, C3H8O, and acetic acid, C2H4O2, both dissolved in cyclohexane) is presented using their absorption at a wavelength of 7.7 μm.

Paper Details

Date Published: 9 March 2018
PDF: 7 pages
Proc. SPIE 10535, Integrated Optics: Devices, Materials, and Technologies XXII, 1053513 (9 March 2018); doi: 10.1117/12.2288783
Show Author Affiliations
Aldo Gutierrez-Arroyo, Lab. FOTON, CNRS (France)
Loïc Bodiou, Lab. FOTON, CNRS (France)
Jonathan Lemaitre, Lab. FOTON, CNRS (France)
Emeline Baudet, Institut des Sciences Chimiques de Rennes, CNRS (France)
Marion Baillieul, Institut des Sciences Chimiques de Rennes, CNRS (France)
Isabelle Hardy, Lab. FOTON, CNRS (France)
Celine Caillaud, SelenOptics (France)
Florent Colas, IFREMER (France)
Kada Boukerma, IFREMER (France)
Emmanuel Rinnert, Ifremer (France)
Karine Michel, BRGM (France)
Bruno Bureau, Institut des Sciences Chimiques de Rennes, CNRS (France)
Virginie Nazabal, Institut des Sciences Chimiques de Rennes, CNRS (France)
Joël Charrier, Lab. FOTON, CNRS (France)

Published in SPIE Proceedings Vol. 10535:
Integrated Optics: Devices, Materials, and Technologies XXII
Sonia M. García-Blanco; Pavel Cheben, Editor(s)

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