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2 results on '"Microstructured exposed-core fiber"'

1. Comparison between chalcogenide glass single index and microstructured exposed-core fibers for chemical sensing.

Author

Toupin, Perrine, Brilland, Laurent, Boussard-Plédel, Catherine, Bureau, Bruno, Mechin, David, Adam, Jean-Luc, and Troles, Johann

Subjects
*CHALCOGENIDE glass, *MICROSTRUCTURE, *CHEMICAL senses, *CHEMICAL bonds, *MOLECULAR vibration, *FIBERS
Abstract

Abstract: Chemical bonds of most of the molecules vibrate at a frequency corresponding to the near or mid infrared field. It is thus of a great interest to develop sensitive and portable devices for the detection of specific chemicals and biomolecules for various applications in health, environment, security and so on. A microstructured exposed-core (MEC) fiber has been elaborated for the first time. This design consists of a chalcogenide glass optical fiber with a suspended micron-scale core that is partially exposed to the external environment. This configuration has been chosen to elaborate, using the molding method, a chalcogenide fiber for chemical species detection. The sensitivity of this fiber to detect molecules such as acetone and propan-2-ol has been compared with those of single index fibers. Although evanescent wave absorption is inversely proportional to the fiber diameter, the results show that an exposed-core fiber is more sensitive than a single index fiber having a twice smaller diameter. [Copyright &y& Elsevier]

Published
2013
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2. Comparison between chalcogenide glass single index and microstructured exposed-core fibers for chemical sensing

Author

Perrine Toupin, Bruno Bureau, David Mechin, Jean-Luc Adam, Laurent Brilland, Johann Troles, Catherine Boussard-Plédel, Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Plate-Forme d'Etudes et de Recherche sur les Fibres Optiques Spéciales (PERFOS), association PERFOS, French Délégation Générale pour l'Armement, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
All-silica fiber, Materials science, Optical fiber, Chalcogenide glasses, Nanotechnology, 02 engineering and technology, 01 natural sciences, Graded-index fiber, law.invention, 010309 optics, law, 0103 physical sciences, Materials Chemistry, Plastic optical fiber, business.industry, Plastic-clad silica fiber, Sensors, Microstructured optical fiber, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Ceramics and Composites, Optoelectronics, 0210 nano-technology, business, Hard-clad silica optical fiber, Photonic-crystal fiber, Microstructured exposed-core fiber
Abstract

International audience; Chemical bonds of most of the molecules vibrate at a frequency corresponding to the near or mid infrared field. It is thus of a great interest to develop sensitive and portable devices for the detection of specific chemicals and biomolecules for various applications in health, environment, security and so on. A microstructured exposed-core (MEC) fiber has been elaborated for the first time. This design consists of a chalcogenide glass optical fiber with a suspended micron-scale core that is partially exposed to the external environment. This configuration has been chosen to elaborate, using the molding method, a chalcogenide fiber for chemical species detection. The sensitivity of this fiber to detect molecules such as acetone and propan-2-ol has been compared with those of single index fibers. Although evanescent wave absorption is inversely proportional to the fiber diameter, the results show that an exposed-core fiber is more sensitive than a single index fiber having a twice smaller diameter.

Published
2013

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