Results 211 to 220 of about 292,649 (389)

Terahertz All‐Dielectric Maxwell Fisheye Lens Waveguide Crossings via Transformation Optics

Laser &Photonics Reviews, EarlyView.
All‐silicon terahertz waveguide crossings based on Maxwell fisheye lenses are reshaped using transformation optics to interface with planar waveguides while reducing mode mismatch. Realized via subwavelength perforations in a single etching step, 2 × 2 and 3 × 3 crossings achieve broadband transmission with low loss and ultralow crosstalk across 220 ...
Nikolaos Xenidis, Joachim Oberhammer, Dmitry Lioubtchenko   +2 more
wiley   +1 more source

Static and Dynamic Multiparameter Assessment of Structural Elements Using Chirped Fiber Bragg Gratings. [PDF]

Sensors (Basel), 2023
Macedo L, Souza EA, Frizera A, Pontes MJ, Marques C, Leal-Junior A.   +5 more
europepmc   +1 more source

Narrow Linewidth near-UV InGaN Laser Diode based on External Cavity\n Fiber Bragg Grating [PDF]

, 2021
Antoine Congar, M. Gay, Georges Perin, Dominique Mammez, Jean-Claude Simon, Pascal Besnard, Julien Rouvillain, Thierry Georges, Laurent Lablonde, Thierry Robin, Stéphane Trebaol   +10 more
openalex   +1 more source

Exploring Thermal and Mechanical Strains During Laying Down Process in Fused Filament Fabrication

Macromolecular Materials and Engineering, EarlyView.
This study analyzes strain evolution and thermal behavior during FFF of PLA using strain gauges and infrared imaging. Microstrain levels depend on printing conditions, with adhesion‐induced compression during cooling and peak strains in early layers. Microtomography shows minimal porosity, while thermal imaging reveals rapid heat penetration, strong ...
Boubakeur Mecheri, Jaianth Vijayakumar, Elodie Boller, Sofiane Guessasma   +3 more
wiley   +1 more source

Femtosecond Laser Modification of Silica Optical Waveguides for Potential Bragg Gratings Sensing. [PDF]

Materials (Basel), 2022
Chen J, Feng JJ, Liu HP, Chen WB, Guo JH, Liao Y, Shen J, Li XF, Huang HL, Zhang DW.   +9 more
europepmc   +1 more source

Strain Development During Cure of Partially Pre‐Cured Thermosetting Composites Measured With Distributed Fiber Optic Sensors

Polymer Composites, EarlyView.
Schematic representation of the beneficial effect of ply pre‐curing on temperature overshoot, internal strain and warpage during cure of thin and thick thermosetting composites. ABSTRACT Detection of manufacturing‐induced defects in thermosetting composites is crucial to guarantee part quality, safety, and improve manufacturing efficiency.
Francesco Taddei, Giacomo Struzziero, Valentin Ott, Véronique Michaud   +3 more
wiley   +1 more source

Strain Modal Testing with Fiber Bragg Gratings for Automotive Applications. [PDF]

Sensors (Basel), 2022
Falcetelli F, Martini A, Di Sante R, Troncossi M.   +3 more
europepmc   +1 more source

Benthic Macroinvertebrate Recovery After Wastewater Treatment Plant Upgrades: Implications for Biomonitoring

River Research and Applications, EarlyView.
ABSTRACT During the past decade, major upgrades have been made to the Kitchener and Waterloo wastewater treatment plants (WWTPs) in the Grand River watershed in Ontario, Canada. As part of efforts to evaluate the effectiveness of these investments (>$450 M CDN), a benthic macroinvertebrate (BMI) monitoring program was initiated by sampling upstream and
Sean McLay, Mark R. Servos, Leslie M. Bragg, Dominika Celmer‐Repin, Hadi A. Dhiyebi, Azar Fattahi, Keegan A. Hicks, Edward M. Krynak, Mitchell Kay, Adam G. Yates   +9 more
wiley   +1 more source

Temperature and Strain Characterization of Tapered Fiber Bragg Gratings. [PDF]

Sensors (Basel)
de Moura CC, de Oliveira V, Kalinowski HJ, Biazoli CR.   +3 more
europepmc   +1 more source

High-Quality Fiber Bragg Gratings Inscribed by Femtosecond Laser Point-by-Point Technology. [PDF]

Micromachines (Basel), 2022
Chen R, He J, Xu X, Wu J, Wang Y, Wang Y.   +5 more
europepmc   +1 more source