21 May 2015 High-sensitive lossy mode resonance-based optical fiber refractometers by means of sputtered indium oxide thin-films
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Abstract
Three different optical fiber refractometers based on lossy mode resonances (LMRs) have been fabricated by means of the deposition of indium oxide thin-films. The sensitivity of the devices as well as the full-width at half maximum (FWHM) has been characterized as a function of the surrounding medium refractive index (from 1.332 to 1.471. Obtained results revealed that thinner coating possess higher sensitivities. However, the FWHM is better for thicker coatings. As a general rule, the thicker the In2O3 coating the lower the sensitivity, but the better the FWHM. Thus, a compromise is required depending on the necessities of the application.
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P. Sanchez, P. Sanchez, K. Gonzalez, K. Gonzalez, C. R. Zamarreño, C. R. Zamarreño, M. Hernaez, M. Hernaez, I. R. Matias, I. R. Matias, F. J. Arregui, F. J. Arregui, } "High-sensitive lossy mode resonance-based optical fiber refractometers by means of sputtered indium oxide thin-films", Proc. SPIE 9517, Smart Sensors, Actuators, and MEMS VII; and Cyber Physical Systems, 95171V (21 May 2015); doi: 10.1117/12.2179751; https://doi.org/10.1117/12.2179751
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