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We realize highly sensitive nitrobenzene sensors in all-fiber scheme employing fiber Fabry-Perot interferometer with poly(4-Vinylpyridine) that provides volume expansion with gas absorption. Sensitivity of 10 ppm with detecting >40-nm spectral shift is successfully demonstrated.
We demonstrated an all-fiber, highly sensitive, and reversible oxygen sensors incorporating fiber Fabry-Perot interferometer (FFPI) coated with hemoglobin, the oxygen-transport metalloprotein, as an indicator. Sensing limit as low as 10 ppm was experimentally achieved.
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