ArticleSensors (Basel, Switzerland)2023
Temperature-Compensated Solution Concentration Measurements Using Photonic Crystal Fiber-Tip Sensors.
Article in Sensors (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 13 citations in OpenAlex.
- Conformal integration of multifunctional nanomembranes on fibers towards intelligent optical platform.Nature communications · 2025Article
- Application-Specific Optimization of Integrated Spectral Sensors.ACS photonics · 2025Article
- Beyond Spectral Resolution in Nanophotonic Sensing: Picometer-Level Precision with Multispectral Readout.ACS nano · 2025Article
- Model Design and Study of a U-Channel Photonic Crystal Fib Optic Sensor for Measuring Glucose Concentration in Blood.Sensors (Basel, Switzerland) · 2025Article
- Fibre Refractometry for Minimally Invasive Sugar Content Measurements within Produce.Sensors (Basel, Switzerland) · 2024Article
- Nano-optomechanical fiber-tip sensing.Npj nanophotonics · 2024Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
We demonstrate fiber optic sensors with temperature compensation for the accurate measurement of ethanol concentration in aqueous solutions. The device consists of two photonic crystal (PhC) fiber-tip sensors: one measures the ethanol concentration via refractive index (RI) changes and the other one is isolated from the liquid for the independent measurement of temperature. The probes utilize an optimized PhC design providing a Lorentzian-like, polarization-independent response, enabling a very low imprecision (pm-level) in the wavelength determination. By combining the information from the two probes, it is possible to compensate for the effect that the temperature has on the concentration measurement, obtaining more accurate estimations of the ethanol concentration in a broad range of temperatures. We demonstrate the simultaneous and single-point measurements of temperature and ethanol concentration in water, with sensitivities of 19 pm/°C and ∼53 pm/%, in the ranges of 25 °C to 55 °C and 0 to 50% (at 25 °C), respectively. Moreover, a maximum error of 1.1% in the concentration measurement, with a standard deviation of ≤0.8%, was obtained in the entire temperature range after compensating for the effect of temperature. A limit of detection as low as 0.08% was demonstrated for the concentration measurement in temperature-stable conditions.
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