Beyond near-infrared lossy mode resonances with fluoride glass optical fiber

Autor: Ignacio R. Matias, J. J. Imas, Carlos R. Zamarreño, Ignacio Vitoria, Aritz Ozcariz
Přispěvatelé: Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. ISC - Institute of Smart Cities, Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación, Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko, Elektroniko eta Telekomunikazio Saila, Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa
Rok vydání: 2021
Předmět:
Zdroj: Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
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Popis: The objective of this Letter consists of the exploration of the lossy mode resonance (LMR) phenomenon beyond the nearinfrared region and specifically in the short wave infrared region (SWIR) and medium wave infrared region (MWIR). The experimental and theoretical results show for the first time, to the best of our knowledge, not only LMRs in these regions, but also the utilization of fluoride glass optical fiber associated with this phenomenon. The fabricated devices consist of a nanometric thin-film of titanium dioxide used as LMR generating material, which probed extraordinary sensitivities to external refractive index (RI) variations. RI sensitivity was studied in the SWIR and MWIR under different conditions, such as the LMR wavelength range or the order of resonance, showing a tremendous potential for the detection of minute concentrations of gaseous or biological compounds in different media. Ministerio de Ciencia, Innovación y Universidades (FPU18/03087); Agencia Estatal de Investigación (PID2019-106231RB-I00 TEC); Universidad Pública de Navarra.
Databáze: OpenAIRE