Alexander Gumennik, Alexander M. Stolyarov, Brent R. Schell, Chong Hou, Guillaume Lestoquoy, Fabien Sorin, William McDaniel, Aimee Rose, John D. Joannopoulos and Yoel Fink All-in-Fiber Chemical Sensing Advanced Materials 24
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.
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