Results 41 to 50 of about 3,011 (223)
Mineral Deposition From Liquid Precursors Triggered by Complementary Polyelectrolytes
Advanced Functional Materials, EarlyView.Polyelectrolyte additives can delay or prevent crystal nucleation in supersaturated solutions of insoluble mineral salts such as calcium carbonate. This work reports that adding a second, oppositely‐charged polyelectrolyte leads to immediate mineral crystallization from such metastable solutions.
Mohammed Kayes Patoary +6 more
wiley +1 more source
Structure-Modulated Long-Period Fiber Gratings: A Review
PhotonicsStructure-Modulated Long-Period Fiber Gratings (SM-LPFGs) represent an advancement in fiber optic sensor technology, moving beyond traditional photosensitivity-based fabrication to achieve enhanced performance through the direct physical modification of ...
Tianyu Du +4 more
doaj +1 more source
A Simple Spectral Interrogation System for Optical Fiber Sensors
Proceedings, 2019 Optical fiber sensors (OFS) based on long-period fiber gratings (LPFG) or on surface plasmon resonance (SPR) represent attractive solutions for detection systems in remote areas.
Paulo S. S. dos Santos +3 more
doaj +1 more source
Programmable long-period grating in a liquid core optical fiber [PDF]
Optics Letters, 2016 A programmable fiber long-period grating (LPG) is experimentally demonstrated in a liquid core optical fiber with a low insertion loss. The LPG is dynamically formed by a temperature gradient in real time through a micro-heater array. The transmission spectrum of the LPG can be completely reconfigured by digitally changing the grating period, index ...
Qi, Tao +7 more
openaire +3 more sources
Tailored Diketopyrrolopyrrole Derivatives for Efficient Deep‐Red Organic Lasers
Advanced Functional Materials, EarlyView.Tailored diketopyrrolopyrrole derivatives exhibit high stable amplified spontaneous emission with single or dual bands. Incorporated into distributed‐feedback lasers based on one‐ and two‐dimensional dichromated‐gelatin diffractive gratings, these materials provide a robust, flexible platform for integrated organic deep‐red light sources. ABSTRACT Deep‐
Pablo Pasqués‐Gramage +10 more
wiley +1 more source
Long-Period Fiber Gratings Coated with Poly(ethylene glycol) as Relative Humidity Sensors
U.Porto Journal of Engineering, 2022 Relative humidity is an important parameter in controlled environments and is typically monitored using low-cost electrochemical sensors with low resolution and accuracy.
Bernardo Dias +2 more
doaj +1 more source
Advanced Healthcare Materials, EarlyView.Micro‐ and nano‐patterned elastin‐like recombinamer (ELR) hydrogels integrate bioactive matrix chemistry with defined surface topography. The combined cues promote rapid endothelial cell capture, alignment, and monolayer formation on soft substrates.
Jagoda Litowczenko +8 more
wiley +1 more source
Mechanically Induced Long-Period Fiber Gratings and Applications
PhotonicsLong-period fiber gratings (LPFGs) functioning as band-reject filters have played a pivotal role in the realm of optical communication. Since their initial documentation in 1996, LPFGs have witnessed rapid advancements in areas such as optical sensing ...
Jiaqi Ran +7 more
doaj +1 more source
Grating Inscription Into Fluoride Fibers: A Review
IEEE Photonics Journal, 2019 First demonstrated over four decades ago, fiber gratings, and in particular fiber Bragg gratings (FBGs), have become indispensable and ubiquitous components within fiber laser cavities as well as optical communication networks and sensor systems. Because
Alexander Fuerbach +2 more
doaj +1 more source
Sensors, 2023 In order to complete this set of three companion papers, in this last, we focus our attention on environmental monitoring by taking advantage of photonic technologies.
Giovanni Breglio +30 more
doaj +1 more source