Sensing applications of U-optrodes

Kalvoda, L.; Aubrecht, Jan; Klepáček, Rudolf; Lukášová, Petra

doi:10.1117/12.866259

Cited by 4 publications

(3 citation statements)

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“…Selection of the model parameters used here is inspired by the former results and roughly covers the range typical for U-bent multimode fibers that have been tested as sensing gauges in various applications [12][13][14][15][16][17] .…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo simulation of surface plasmon polariton excitation on U-bent multimode optical fibers

Klepáček

Kalvoda

2012

Optical Sensing and Detection II

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Sharply bent optical fibers can be used as sensory systems. At first instance, application of curved optical fiber is refractometric, but after immobilizing a metal layer on the stripped core of the optical fiber its usage can be much more sophisticated. On the metal layer surface, it is possible to excite a special electronic oscillatory mode, surface plasmon polariton (SPP). In the paper we present combination of the classic Drude model of free electron gas, the optical ray tracing approximation and the Monte Carlo method to calculate the probability and estimate the real possibility of excitation of SPP in a metal layer coating prepared on core of a U-bent multimode optical fiber. The calculated results allow for direct assessment of the optimized metal layer position on the semi-toroidal optical fiber waveguide in dependence on the model parameters.

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Section: Introductionmentioning

confidence: 99%

Monte Carlo simulation of surface plasmon polariton excitation on U-bent multimode optical fibers

Klepáček

Kalvoda

2012

Optical Sensing and Detection II

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“…This particular task is part of a long-time research activity of our group devoted to development of fiber optic sensing systems utilizing U-optrodes in place of sensing elements 21 . In this case, the sensing principle is based on thermally induced structural changes of a polymer layer deposited in the central part of the optrode on the bare fiber core surface.…”

Section: Introductionmentioning

confidence: 99%

U-optrode-based fiber optic thermometers

et al. 2011

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Extremely bent optical fiber (U-optrode) is applicable as a sensing head, signal of which is govern by refractive index and light scattering properties of the surrounding medium. The presented contribution aims to shows that when covered with properly selected polymeric transducers, the reliable and fast thermometers covering different temperature ranges can be constructed suitable for, e.g., measurements in environments with high level of electric or magnetic disturbances. Obviously, the bare optrodes can be also used as sensitive analytic tools for collecting information about thermallyinduced changes of optical and micro-structural properties of polymers.

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“…Bent fibers can be an interesting choice to increase the evanescent field and hence the interactions with the surrounding active media as it is described by several authors for the fabrication of humidity [80,81], pH [82], ammonia [83], H 2 O 2 [84] and Hg 2+ [85] sensors.…”

Section: Absorbance-based Sensorsmentioning

confidence: 99%

Nanostructured Materials in Optical Fiber Sensing

Hernáez¹

2013

TOOPTSJ

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This work comprehends a review of nanostructured materials employed in the fabrication of optical fiber sensors in the last years. The continuous advances in nanofabrication techniques have enabled to manipulate the matter precisely producing well defined nanostructurated coatings or repetitive patterns at nanoscale level. The interactions of light with these nano-organized materials or patterns at the nanoscale level enable to observe interesting phenomena, such as interferometry, fluorescence, absorbance, resonances and many others which can be exploited in the fabrication of sensing devices. A particular case consists of optical fiber sensors, where the light travelling through an optical fiber interacts with the sensitive layer. The properties of the sensitive layer, such as the organization, physical properties, chemical bounds etc. will determine the sensing characteristics of the final device. The utilization of some of the most common nanostructured materials, such as polymers, nanoparticles, metals, metal oxides or biological coatings are reviewed here.

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Sensing applications of U-optrodes

Cited by 4 publications

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Monte Carlo simulation of surface plasmon polariton excitation on U-bent multimode optical fibers

Monte Carlo simulation of surface plasmon polariton excitation on U-bent multimode optical fibers

U-optrode-based fiber optic thermometers

Nanostructured Materials in Optical Fiber Sensing

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