Effect of temperature and wavelength on the refractive index of water : a fiber-optic sensor application

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buir.contributor.authorKendir, Esra
buir.contributor.orcidKendir, Esra|0000-0002-6728-5640
dc.citation.epage1252en_US
dc.citation.issueNumber4
dc.citation.spage1247en_US
dc.citation.volumeNumber96
dc.contributor.authorKendir, Esra
dc.contributor.authorYaltkaya, Ş.
dc.date.accessioned2022-02-11T10:45:29Z
dc.date.available2022-02-11T10:45:29Z
dc.date.issued2021-03-25
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractThe refractive index n(λ,T) is a basic optical property of materials. The refractive index and the thermo-optic coefficient (dn/dT) are significant parameters of liquids for optically controlled systems, such as the direct measurement of liquid solution concentrations and optical paths. In this study, the variation in the refractive index of water in the liquid phase with temperature was measured with our self-designed fiber optic-based refractive index sensor and dn/dT values were obtained with a full-width half-maximum method at wavelengths of 980, 1426, and 1550 nm, respectively. Water is the most abundant and life-critical substance in the world, and its optical properties pose challenging scientific problems that require knowledge of the refractive index to be resolved. The results indicate that the experimental refractive index values are compatible with both the theoretical and experimental data in the literature. We also tested the refraction index results with two theoretical models and obtained good agreement between the calculated and experimental values. The resolution of the fiber optic-based refractive index sensor was 10−5. Our designed sensor could measure the refractive index of liquids with temperature with accuracy.en_US
dc.identifier.doi10.1007/s12648-021-02064-7en_US
dc.identifier.eissn0974-9845
dc.identifier.issn0973-1458
dc.identifier.urihttp://hdl.handle.net/11693/77277
dc.language.isoEnglishen_US
dc.publisherSpringer (India) Private Ltd.en_US
dc.relation.isversionofhttps://doi.org/10.1007/s12648-021-02064-7en_US
dc.source.titleIndian Journal of Physicsen_US
dc.subjectFiber-optic sensoren_US
dc.subjectRefractive indexen_US
dc.subjectWateren_US
dc.subjectThermo-optic coefficienten_US
dc.titleEffect of temperature and wavelength on the refractive index of water : a fiber-optic sensor applicationen_US
dc.typeArticleen_US

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