Results 41 to 50 of about 276 (190)
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
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
Sky‐Directional Radiative Cooling Meta‐Films for Daylighting Windows
Advanced Functional Materials, EarlyView.A geometry‐mediated microprism meta‐film enables transparent, sky‐directional radiative cooling for daylighting windows. By decoupling control of visible transmittance from mid‐infrared emissivity, ground‐emitted heat absorption is suppressed while skyward heat dissipation is enhanced.
Seung‐Ah Yu +7 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
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
Long period grating resonances in photonic bandgap fiber
Optics Express, 2006 We demonstrate the formation of stress-induced long period gratings (LPGs) in fluid-filled photonic bandgap fiber (PBGF). Based on our experimental results, simulations, and theoretical understanding of LPGs, we identify coupling to a guided LP(11)-like mode of the core and lossy LP1x-like modes of cladding microstructure for a single grating period ...
P, Steinvurzel +4 more
openaire +2 more sources
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
SensorsEpoxy resins are widely used in the manufacture of composite materials for a wide range of applications. Control of the curing process is an important consideration in ensuring product quality and minimizing production times. The curing of epoxy resin is
Oleg V. Ivanov +2 more
doaj +1 more source