Results 141 to 150 of about 4,697 (230)

Coupled Operando Mössbauer‐Raman Spectroscopic Analysis of Iron Molybdate Catalysts During Oxidative Dehydrogenation

ChemCatChem, Volume 18, Issue 15, 14 August 2026.
We demonstrate the potential of a coupled SMS‐Raman setup for the ODH of EtOH over a Fe2(MoO4)3 + MoO3 catalyst during reductive conditions. Coupling both methods allows to distinguish (sub)surface and bulk properties of the material during catalysis, that can be correlated with activity and selectivity data from mass spectrometry.
Lanjie Jiang, Jan Welzenbach, Jonas Spielmann, Hannah M. Wilhelm, Kathrin Hofmann, Felix Reinauer, Jan‐Dierk Grunwaldt, Barbara Albert, Christian Hess, Ulrike I. Kramm   +9 more
wiley   +1 more source

Accurate Determination of the Temperature Sensitivity of UV-Induced Fiber Bragg Gratings. [PDF]

Sensors (Basel)
Cosme M, Pota M, Preizal J, Caldas P, Oliveira R, Nogueira R, Araújo FM, Cruz JL, Rego GM.   +8 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

Study on Analysis of Dispersion for TDM‐GPON System With Different Parameters

Engineering Reports, Volume 8, Issue 8, August 2026.
The workflow and simulated outcomes of a 32‐user bidirectional TDM‐GPON system simulated in OptiSystem 19 to evaluate the effects of optical fiber dispersion under various data rates, fiber lengths, and dispersion levels are shown in the graphical abstract.
Molla Belete Salelgne, Muhabaw Amare Alebachew, Amanuel Asrie Desalegn   +2 more
wiley   +1 more source

Tunable Goos-Hänchen Shift in Symmetric Graphene-Integrated Bragg Gratings. [PDF]

Micromachines (Basel)
Zhang Q, Zhao M, Ni H, Wu H, Liu F, Liu F, Qin Z, Zhong D, Liu Z, Chen X, Zhao D.   +10 more
europepmc   +1 more source

Enhancement of the WS2 A1g Raman Mode in MoS2/WS2 Heterostructures

physica status solidi (b), Volume 263, Issue 8, August 2026.
In van der Waals heterostructures consisting of WS2 and MoS2 monolayers, we find a strong, selective enhancement of the WS2 A1g Raman mode due to interlayer coupling and in‐phase vibration of sulfur atoms in the adjacent MoS2 layer. When combined into heterostructures, transition metal dichalcogenide monolayers enable the exploration of novel physics ...
Annika Bergmann‐Iwe, Tomasz Woźniak, Mustafa Hemaid, Oisín Garrity, Patryk Kusch, Rico Schwartz, Ziyang Gan, Antony George, Ludger Wirtz, Stephanie Reich, Andrey Turchanin, Tobias Korn   +11 more
wiley   +1 more source

Benchmarking Multilayer Perceptron Configurations for Damage Classification in UAV Composite Wings Using Fiber Bragg Gratings Sensors. [PDF]

Sensors (Basel)
González DOB, Sierra-Perez J, Vejar MA, Burgos DT.   +3 more
europepmc   +1 more source

Distributed Impact Wave Detection in Steel I-Beam with a Weak Fiber Bragg Gratings Array. [PDF]

Sensors (Basel), 2023
Wang Y, Hoult NA, Woods JE, Kassenaar H, Bao X.   +4 more
europepmc   +1 more source

High‐Efficiency Generation of Vectorial Terahertz Beams via Surface‐Wave‐Excited Dielectric Metasurfaces

Small, Volume 22, Issue 46, 18 August 2026.
ABSTRACT Generating pre‐designed vectorial beams via on‐chip devices can yield many fascinating applications, but traditional diffraction‐based devices are bulky and inefficient. While plasmonic metasurfaces exhibit ultra‐compact sizes and deep‐subwavelength resolutions, their working efficiencies are limited by metallic losses.
Yu He, Yuanxi Liu, Yao Yao, Qingnan Cai, Dumeng Zhang, Xiangyu Jin, Shulin Sun, Zhuo Wang, Lei Zhou   +8 more
wiley   +1 more source

Accelerating photonic gas sensor design: machine learning-driven inverse optimization of silicon photonics Bragg gratings. [PDF]

Sci Rep
Khafagy M, Khafagy M, Swillam MA.
europepmc   +1 more source