Giant sensitivity of optical fiber sensors by means of lossy mode resonance

Arregui, Francisco J.; Villar, Ignacio Del; Zamarreño, Carlos R.; Zubiate, Pablo; Matı́as, Ignacio R.

doi:10.1016/j.snb.2016.04.015

Cited by 96 publications

(79 citation statements)

References 34 publications

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“…Compared to FBGs, the spectral width of the LPG attenuation bands is almost two orders of magnitude greater. Because of the dependence of the phase-matching condition with the effective RI of fiber cladding, as clearly stated in equation (3), LPGs are intrinsically sensitive to the SRI exhibiting changes in the position of the…”

Section: Fundamentalsmentioning

confidence: 99%

“…Different nanofabrication techniques have been proposed in literature during the time, ranging from the classical techniques (spin and dip coating, physical and chemical vapor deposition, and electrospinning) up to the more novel techniques (chemical self-assembly monolayer, layer-by-layer electrostatic self-assembly, electrochemical deposition, Langmuir-Blodgett, and nanolithography). All of those, when applied to optical fiber sensors, are described in detail by Zamarreño et al [2] and Arregui et al [3]. In the case of OFGs, the use of nanotechnology and nanomaterials can really lead to improved performance of the sensors.…”

Section: How Can Nanotechnology Meet Ofg-based Sensing Platforms?mentioning

confidence: 99%

“…As a matter of fact, this action can lead to a great improvement of the field interaction at a molecular scale between the device and the surrounding environment [1] and also to the excitation of SPR, localized SPR (LSPR) [2], and lossy mode resonance (LMR) phenomena [3]. In fact, nanostructured coatings or patterns can induce strong changes in the properties of the light traveling through the fiber and, then, can represent a cost-effective, innovative, and valid option able to develop label-free biosensors and, thus, to quantify and monitor the biomolecular interactions in real time.…”

Section: Introductionmentioning

confidence: 99%

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Biosensing with optical fiber gratings

et al. 2017

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Optical fiber gratings (OFGs), especially longperiod gratings (LPGs) and etched or tilted fiber Bragg gratings (FBGs), are playing an increasing role in the chemical and biochemical sensing based on the measurement of a surface refractive index (RI) change through a label-free configuration. In these devices, the electric field evanescent wave at the fiber/surrounding medium interface changes its optical properties (i.e. intensity and wavelength) as a result of the RI variation due to the interaction between a biological recognition layer deposited over the fiber and the analyte under investigation. The use of OFG-based technology platforms takes the advantages of optical fiber peculiarities, which are hardly offered by the other sensing systems, such as compactness, lightness, high compatibility with optoelectronic devices (both sources and detectors), and multiplexing and remote measurement capability as the signal is spectrally modulated. During the last decade, the growing request in practical applications pushed the technology behind the OFG-based sensors over its limits by means of the deposition of thin film overlays, nanocoatings, and nanostructures, in general. Here, we review efforts toward utilizing these nanomaterials as coatings for high-performance and low-detection limit devices. Moreover, we review the recent development in OFG-based biosensing and identify some of the key challenges for practical applications. While high-performance metrics are starting to be achieved experimentally, there are still open questions pertaining to an effective and reliable detection of small molecules, possibly up to single molecule, sensing in vivo and multi-target detection using OFG-based technology platforms.

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Section: Fundamentalsmentioning

confidence: 99%

Section: How Can Nanotechnology Meet Ofg-based Sensing Platforms?mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biosensing with optical fiber gratings

et al. 2017

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“…Conversely, in the particular case of the emergent Lossy Mode Resonance (LMR) -based sensors, a wide range of materials can support this type of resonance, such as metal oxide s and polymers, making these devices more versatile and cheaper [2], [3], [4]. Furthermore, LMR can be excited with both TE and TM polarized light, which crucially simplifies the interrogation scheme [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Lossy Mode Resonance Generation by Graphene Oxide Coatings Onto Cladding-Removed Multimode Optical Fiber

2019

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In this work, we have studied the suitability of graphene oxide -based thin films to be not only excellent sensitive coatings but also lossy mode resonance (LMR)-generating materials. Thin films of graphene oxide (GO) and polyethylenimine (PEI) fabricated by means of layer-by-layer assembly were selected in this study. Two optical fiber devices with 8 and 20 bilayers of the LMR-generating coating were fabricated and characterized as refractometers. Both devices show no hysteresis and high sensitivity, improving previously reported values. This research opens very promising and exciting possibilities in the field of optical fiber sensors based on LMR, strategically including specific recognition groups to the device surface to exploit this high sensitivity for monitoring a range of target analytes. The carboxylate functional groups at the edges of the GO sheets should provide excellent attachment sites for the required coupling chemistry to realize such devices.

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“…LMR generation with absorbing thin films was analyzed with an electromagnetic theory [24]. The metal oxide materials that were used are ZnO, TiO 2 , In 2 O 3 , SnO 2 , and ITO [25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Lossy Mode Resonance-Based Glucose Sensor with High-κ Dielectric Film

2019

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In the past, high-κ dielectrics gained much attention because of the constant demand for increasingly smaller semiconductors. At the same time, in the field of optical sensing, high-κ dielectrics are key materials. This study presents the experimental investigations on a lossy mode resonance-based optical planar waveguide (LMROPW) sensor coated with a high-κdielectric of an indium tin oxide (ITO) layer. Two types of sensing structures were fabricated by coating (i) only a single-layer ITO (or bared LMROPW) and (ii) an ITO layer with glucose probes onto the optical planar waveguide (or boronic LMROPW) to detect glucose molecules. The sensing characteristics of these two types of sensors toward the surrounding analyte were determined using different concentrations of glucose solutions. It was found that the bared LMROPW sensor is only suitable for a higher concentration of glucose; the boronic LMROPW sensor with glucose probes on ITO could be applied to a lower-concentration solution to monitor glucose adsorption onto the sensing surface. Furthermore, with the advantages of a simple structure, easy alignment, and suitable production, the LMROPW sensor with a high-κ dielectric surface could be applied in clinical testing and diagnostics.

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Giant sensitivity of optical fiber sensors by means of lossy mode resonance

Cited by 96 publications

References 34 publications

Biosensing with optical fiber gratings

Biosensing with optical fiber gratings

Lossy Mode Resonance Generation by Graphene Oxide Coatings Onto Cladding-Removed Multimode Optical Fiber

Lossy Mode Resonance-Based Glucose Sensor with High-κ Dielectric Film

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