All-in-Fiber Chemical Sensing

Alexander Gumennik (1, 2) , Alexander M. Stolyarov (1, 2) , Brent R. Schell (3) , Chong Hou (1, 2) , Guillaume Lestoquoy (1, 2, 4) , Fabien Sorin (1, 2, 5) , William Mcdaniel (3) , Aimee Rose (3) , John D. Joannopoulos (1, 2, 6) , Yoel Fink (1, 2)

1 Research Laboratory of Electronics
2 Institute for Soldier Nanotechnologies
3 FLIR Syst.
4 Dept Elect Engn & Comp Sci
5 SVI - Surface du Verre et Interfaces
6 Department of Physics [MIT Cambridge]

A new all-in-fiber trace-level chemical sensing approach is demonstrated. Photoconductive structures, embedded directly into the fiber cladding along its entire length, capture light emitted anywhere within the fiber's hollow core and transform it directly into an electrical signal. Localized signal transduction circumvents problems associated with conventional fiber-optics, including limited signal collection efficiency and optical losses. This approach facilitates a new platform for remote and distributed photosensing.

Mots clés: fibers; chemical sensing; photodetection; peroxide detection

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Alexander Gumennik, Alexander M. Stolyarov, Brent R. Schell, Chong Hou, Guillaume Lestoquoy, et al.. All-in-Fiber Chemical Sensing. Advanced Materials, 2012, 24 (45), pp.6005-6009. ⟨10.1002/adma.201203053⟩. ⟨hal-00797429⟩