Comparison between chalcogenide glass single index and microstructured exposed-core fibers for chemical sensing - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Journal of Non-Crystalline Solids Année : 2013

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

Résumé

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.

Domaines

Matériaux

Dates et versions

hal-00860095 , version 1 (10-09-2013)

Identifiants

Citer

Perrine Toupin, Laurent Brilland, Catherine Boussard-Plédel, Bruno Bureau, David Mechin, et al.. Comparison between chalcogenide glass single index and microstructured exposed-core fibers for chemical sensing. Journal of Non-Crystalline Solids, 2013, 377, pp.217-219. ⟨10.1016/j.jnoncrysol.2012.12.026⟩. ⟨hal-00860095⟩
69 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More