Results 21 to 30 of about 46,651 (299)

Experimental Characterization of Plasmonic Sensors Based on Lab-Built Tapered Plastic Optical Fibers

Applied Sciences, 2020
In this work, we have compared several configurations of surface plasmon resonance (SPR) sensors based on D-shaped tapered plastic optical fibers (TPOFs).
Nunzio Cennamo, Francesco Arcadio, Aldo Minardo, Domenico Montemurro, Luigi Zeni   +4 more
doaj   +1 more source

Effect of Temperature and Gamma-Ray Irradiation on Optical Characteristics of Fiber Bragg Grating Inscribed Radiation-Resistant Optical Fiber

Photonic Sensors, 2019
A new radiation-hard germano-silicate glass optical fiber with a pure silica glass buffer and a boron-doped silica glass inner cladding was fabricated for temperature sensor application based on the fiber Bragg grating (FBG) under γ-ray irradiation ...
Seongmin Ju, Youngwoong Kim, Kadathala Linganna, Yune Hyoun Kim, Won-Taek Han   +4 more
doaj   +1 more source

A Simple Small Size and Low Cost Sensor Based on Surface Plasmon Resonance for Selective Detection of Fe(III)

Sensors, 2014
A simple, small size, and low cost sensor based on a Deferoxamine Self Assembled Monolayer (DFO-SAM) and Surface Plasmon Resonance (SPR) transduction, in connection with a Plastic Optical Fiber (POF), has been developed for the selective detection of Fe ...
Nunzio Cennamo, Giancarla Alberti, Maria Pesavento, Girolamo D'Agostino, Federico Quattrini, Raffaela Biesuz, Luigi Zeni   +6 more
doaj   +1 more source

Polymer Fibers Covered by Soft Multilayered Films for Sensing Applications in Composite Materials

Sensors, 2019
This paper presents the possibility of applying a soft polymer coating by means of a layer-by-layer (LbL) technique to highly birefringent polymer optical fibers designed for laminating in composite materials.
Dorian Nikoniuk, Karolina Bednarska, Maksymilian Sienkiewicz, Grzegorz Krzesiński, Mateusz Olszyna, Lars Dähne, Tomasz R. Woliński, Piotr Lesiak   +7 more
doaj   +1 more source

Continuous-Wave Fiber Cavity Ringdown Pressure Sensing Based on Frequency-Shifted Interferometry

Sensors, 2018
We present a continuous-wave fiber cavity ringdown (FCRD) pressure-sensing method based on frequency-shifted interferometry (FSI). Compared with traditional CRD or FCRD techniques, this FSI-FCRD scheme deduces pressure by measuring the decay rate of ...
Yiwen Ou, Chunfu Cheng, Zehao Chen, Zhangyong Yang, Hui Lv, Li Qian   +5 more
doaj   +1 more source

Development of an Aptamer Based Luminescent Optical Fiber Sensor for the Continuous Monitoring of Hg²⁺ in Aqueous Media

Sensors, 2020
A fluorescent optical fiber sensor for the detection of mercury (Hg2+) ions in aqueous solutions is presented in this work. The sensor was based on a fluorophore-labeled thymine (T)-rich oligodeoxyribonucleotide (ON) sequence that was directly ...
Nerea De Acha, César Elosúa, Francisco J. Arregui   +2 more
doaj   +1 more source

Ultra-fast all-optical 8-to-3 encoder utilizing photonic crystal fiber

AIP Advances, 2023
This work proposes a novel design of an 8-to-3 encoder in a photonic crystal fiber (PCF). It is composed of a buffer and three OR logic gates using circular air holes in a silicon dioxide substrate.
Saleh Naghizade, Azadeh Didari-Bader, Hamed Saghaei, Maryam Etezad   +3 more
doaj   +1 more source

DNA Aptamer Functionalized Hydrogels for Interferometric Fiber-Optic Based Continuous Monitoring of Potassium Ions

Biosensors, 2021
In the present paper, we describe a potassium sensor based on DNA-aptamer functionalized hydrogel, that is capable of continuous label-free potassium ion (K+) monitoring with potential for in situ application. A hydrogel attached to the end of an optical
Nataša Žuržul, Bjørn Torger Stokke
doaj   +1 more source

A Molecularly Imprinted Polymer on a Plasmonic Plastic Optical Fiber to Detect Perfluorinated Compounds in Water

Sensors, 2018
A novel Molecularly Imprinted Polymer (MIP) able to bind perfluorinated compounds, combined with a surface plasmon resonance (SPR) optical fiber platform, is presented.
Nunzio Cennamo, Girolamo D’Agostino, Gianni Porto, Adriano Biasiolo, Chiara Perri, Francesco Arcadio, Luigi Zeni   +6 more
doaj   +1 more source

Study on optimization of nano-coatings for ultra-sensitive biosensors based on long-period fiber grating

Sensing and Bio-Sensing Research, 2020
Bio-chemical sensors are expected to offer high sensitivity and specificity towards the detection of an analyte. It has been found that optical sensors based on long period fiber gratings (LPFGs) meet most of these requirements, particularly when coated ...
Sankhyabrata Bandyopadhyay, Liyang Shao, Chao Wang, Shuaiqi Liu, Qiang Wu, Guoqiang Gu, Jie Hu, Yanjun Liu, Xiaolong Chen, Zhangqi Song, Xuefeng Song, Qiaoliang Bao, Mateusz Smietana   +12 more
doaj   +1 more source