| Autor: |
D. Jáuregui Vázquez, Juan Manuel Sierra-Hernández, Juan C. Hernandez-Garcia, L. A. Herrera-Piad, Mahrokh Avazpour, Marco Bianchetti, Roberto Rojas-Laguna, J. A. Martin-Vela, Julian M. Estudillo-Ayala, Y. Lopez-Dieguez |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Suplemento de la Revista Mexicana de Física. 2:43-48 |
| ISSN: |
2683-2585 |
| DOI: |
10.31349/suplrevmexfis.2.1.43 |
| Popis: |
We report a refractive index tip fiber optic sensor based on a modal interferometer coated with a thin copper film. This device can be used for solute concentration in aqueous mixture measurement. The copper film increases the device reflectivity and, as a result, increases the multimodal interference pattern visibility. To validate the sensor device, different water-glycerol weight concentrations were used in the range from 0 to 45 Glycerol %. The recorded spectral responses show a redshifting, and a sensitivity of 19 pm / (Glycerol % by weight) from 0 to 18 % and 4.7 pm / (Glycerol % by weight) from 18 to 45 % was achieved. Besides, using a phase analysis we calculated a sensitivity of -15 rad/RIU. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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