Results 21 to 30 of about 25,095 (136)

Fiber-Optic Nanosensors for Chemical Detection

open access: yesChemosensors, 2023
Recently, rapid progress has been achieved in the field of nanomaterial preparation and investigation. Many nanomaterials have been employed in optical chemical sensors and biosensors.
Vlastimil Matějec   +2 more
doaj   +1 more source

Estimating sugar concentration in human blood serum using Surface Plasmon Resonance (SPR) –based optical fiber sensor

open access: yesIraqi Journal of Physics, 2019
Surface Plasmon Resonance (SPR)-based plastic optical fiber sensor for estimating the concentration and refractive index of sugar in human blood serum. The sensor is fabricated by a small part (10mm) of optical fiber in the middle is embedded in a resin
Namaa Salem Rahim
doaj   +1 more source

Optical Sensors Based on Plastic Fibers

open access: yesSensors, 2012
The recent advances of polymer technology allowed the introduction of plastic optical fiber in sensor design. The advantages of optical metrology with plastic optical fiber have attracted the attention of the scientific community, as they allow the ...
Rogério Nogueira   +3 more
doaj   +1 more source

Side-polished SMS based RI sensor employing macro-bending perfluorinated POF

open access: yesOpto-Electronic Advances, 2021
A refractive index (RI) sensor based on perfluorinated plastic optical fiber (PF-POF) is introduced in this paper. The PF-POF as multi-mode fiber was side-polished (SP) to form a macro-bending single-mode-multimode-single-mode (SMS) structure.
Xuezhi Zhang   +8 more
doaj   +1 more source

Measurement of Cerenkov Radiation Induced by the Gamma-Rays of Co-60 Therapy Units Using Wavelength Shifting Fiber

open access: yesSensors, 2014
In this study, a wavelength shifting fiber that shifts ultra-violet and blue light to green light was employed as a sensor probe of a fiber-optic Cerenkov radiation sensor. In order to characterize Cerenkov radiation generated in the developed wavelength
Kyoung Won Jang   +6 more
doaj   +1 more source

Three Lobes Plastic Optical Fiber Bending and Rotation Sensor

open access: yesProceedings, 2019
In this work a multiparameter plastic optical fiber (POF) sensor is presented. A three lobes POF consisting of polymethylmethacrylate (PMMA) core and a fluorinated polymer (FP) for the cladding was fabricated.
Demetrio Sartiano   +2 more
doaj   +1 more source

The effect of static pressure on the loss of transition through an optical fiber with a constant multi-pattern refractive index [PDF]

open access: yesمجلة التربية والعلم, 2006
This work presents the study of the effect of the static pressure on the propagation of laser beam in the fibers. Three types of fiber have been used in this studies; multimode & step index fiber, Plastic Clad Plastic (PCP) with and with-out jacket and ...
Khalil Mustafa   +2 more
doaj   +1 more source

Intrinsically Stabilized Plastic Optical Fiber Link Subject to External Optical Feedback

open access: yesIEEE Photonics Journal, 2019
We develop a graded-index plastic optical fiber (GI POF) that can significantly stabilize a multimode fiber (MMF) link with a vertical-cavity surface-emitting laser (VCSEL) subject to external optical feedback.
Azusa Inoue, Yasuhiro Koike
doaj   +1 more source

A Review of Apta-POF-Sensors: The Successful Coupling between Aptamers and Plastic Optical Fibers for Biosensing Applications

open access: yesApplied Sciences, 2022
Aptamers represent the next frontier as biorecognition elements in biosensors thanks to a smaller size and lower molecular weight with respect to antibodies, more structural flexibility with the possibility to be regenerated, reduced batch-to-batch ...
Laura Pasquardini   +3 more
doaj   +1 more source

Instrumented Office Chair With Low-Cost Plastic Optical Fiber Sensors for Posture Control and Work Conditions Optimization

open access: yesIEEE Access, 2022
People spend more and more time sitting and this habit has been shown to cause spine pathologies. Thus, the scientific community and the industry have become interested in instrumented chairs development to detect incorrect user postures. In this work we
Catia Tavares   +8 more
doaj   +1 more source

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