Results 31 to 40 of about 171 (117)

High sensitive refractometers based on lossy mode resonances (LMRs) supported by ITO coated D-shaped optical fibers

Optics Express, 2015
Tin doped indium oxide (ITO) coatings fabricated onto D-shaped optical fibers are presented as the supporting medium for Lossy Mode Resonances (LMRs) generation. The characteristic geometry of ITO-coated D-shaped optical fibers enables to observe experimentally LMRs obtained with both TM and TE polarized light (LMR(TM) and LMR(TE)).
Zubiate Orzanco, Pablo, Ruiz Zamarreño, Carlos, Del Villar, Ignacio, Matías Maestro, Ignacio, Arregui San Martín, Francisco Javier   +4 more
openaire   +4 more sources

High Sensitivity Refractive Index Sensor by D-Shaped Fibers and Titanium Dioxide Nanofilm

Advances in Condensed Matter Physics, 2018
This paper presents a high sensitivity liquid refractive index (RI) sensor based on lossy mode resonance (LMR) effect. The D-shaped fibers coated with nanosized titanium dioxide (TiO2) thin film as a sensing head were submerged into different refractive ...
Chuen-Lin Tien, Hong-Yi Lin, Shu-Hui Su
doaj   +1 more source

Gas Detection Using LMR-Based Optical Fiber Sensors

Proceedings, 2018
This work presents a first approach to the utilization of Lossy Mode Resonance (LMR) based optical fiber sensors for gas detection. The optical sensor is based on a SnO2 thin-film fabricated onto the core of cladding removed multimode fibers (MMF).
Uilian José Dreyer, Aritz Ozcariz, Joaquín Ascorbe, Pablo Zubiate, Ignacio Vitoria, Cicero Martelli, Jean Carlos Cardozo da Silva, Carlos Ruiz Zamarreño   +7 more
doaj   +1 more source

Lossy Mode Resonance Based Fiber Optic Sensor for the Detection of Acetone Concentration

Journal of Biomedical Photonics & Engineering, 2023
Diabetic ketoacidosis (DKA) is a serious complication arising due to the shortage of insulin that allows blood sugar into cells to be used as energy. As a result, the liver begins to break down fat for energy, thus producing acids called ketones.
Asokan Prasanth, Varadharajan Kanchana Harini, Mohan Velumani, Subramaniyam Narasimman, Zachariah C. Alex   +4 more
doaj   +1 more source

A systemic model for lossy mode resonances (LMRs)

Optics & Laser Technology
Lossy mode resonances (LMRs) have been widely employed for the development of sensors in the last years. However, the theoretical frameworks for LMRs are scarce and difficult to systematize, hampering the development of this technology. In this work, we propose a new systemic model for assessing LMRs in arbitrary waveguide configurations, based solely ...
J.J. Imas, Ignacio Del Villar, Robert Halir, J. Gonzalo Wangüemert-Pérez, Alejandro Ortega-Moñux, Ignacio R. Matías, Íñigo Molina-Fernández   +6 more
openaire   +4 more sources

Monitoring the Vital Activity of Microalgae Cells Using a Fiber-Optical Refractometer

Photonics, 2022
Using the technology of metalorganic chemical vapor deposition (MOCVD), fully fiber refractometers based on the lossy mode resonance (LMR) were obtained and investigated.
Dmitriy P. Sudas, Petr I. Kuznetsov, Evgeny A. Savelyev, Konstantin M. Golant   +3 more
doaj   +1 more source

Lossy Mode Resonance Sensors Based on Planar Waveguides: Theoretical and Experimental Comparison

IEEE Photonics Journal
Lossy mode resonance (LMR) has garnered significant attention in sensor applications. LMR was primarily explored in fiber-based systems, however, there has been a recent upsurge in its application within planar waveguides.
Edvins Letko, Arturs Bundulis, Gatis Mozolevskis   +2 more
doaj   +1 more source

SAR validation of RF coils and implants in a B0‐free RF safety laboratory

Medical Physics, Volume 53, Issue 9, September 2026.
Abstract Background As MRI continues to advance toward higher field strengths, RF safety assessment has become more complex. Accurate estimation of specific absorption rate (SAR) is essential for evaluating both hardware and implant safety, yet thermometry and simulation‐only approaches face limitations.
Nur Izzati Huda Zulkarnain, Mazin M. Mustafa, Alireza Sadeghi‐Tarakameh, Mert Ates, Jeromy Thotland, Steve Jungst, Arcan Erturk, Lance DelaBarre, Matt Waks, Russell L. Lagore, Kamil Ugurbil, Gregory J. Metzger, Gregor Adriany, Yigitcan Eryaman   +13 more
wiley   +1 more source

Ultrahigh Sensitive Detection of Tau Protein as Alzheimer's Biomarker via Microfluidics and Nanofunctionalized Optical Fiber Sensors

Advanced Photonics Research, 2022
Alzheimer's disease (AD) is one of the most common neurodegenerative illnesses displaying the highest death rate in the elderly. However, the existing AD diagnostic system remains elusive due to lack of a technology that may ensure enough sensitivity and
Francesco Chiavaioli, Desiree Santano Rivero, Ignacio Del Villar, Abián B. Socorro‐Leránoz, Xuejun Zhang, Kaiwei Li, Enrique Santamaría, Joaquín Fernández-Irigoyen, Francesco Baldini, Daniel L. A. van den Hove, Lei Shi, Wei Bi, Tuan Guo, Ambra Giannetti, Ignacio R. Matias   +14 more
doaj   +1 more source

Idiopathic Intracranial Hypertension Is Characterized by a Distinct Proteomic Profile

Annals of Neurology, Volume 100, Issue 2, Page 255-267, August 2026.
Objectives The pathophysiology of idiopathic intracranial hypertension (IIH) is poorly understood and disease‐specific biomarkers are lacking. We aimed to shed light on IIH pathophysiology and identify disease‐specific biomarkers. Methods This prospective cross‐sectional cohort study included patients with new‐onset IIH and age‐, body mass index‐, and ...
Santosh D. Bhosale, Arkadiusz Nawrocki, Johanne J. Korsbæk, Nadja S. Hansen, Fabian Foettinger, Nik Krajnc, Mathias J. Norvig, Niclas L. Eriksen, Stefan Macher, Berthold Pemp, Connar S.J. Westgate, Christian B. Pedersen, Frantz R. Poulsen, Sune Munthe, Gabriel Bsteh, Martin R. Larsen, Rigmor H. Jensen, Dagmar Beier   +17 more
wiley   +1 more source