Results 51 to 60 of about 23,841 (308)

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Laser microsculpting for the generation of robust diffractive security markings on the surface of metals [PDF]

, 2015
We report the development of a laser-based process for the direct writing (‘microsculpting’) of unique security markings (reflective phase holograms) on the surface of metals.
Wlodarczyk, Krystian Lukasz, Hand, Duncan P., Ardron, Marcus, Krystian L. Wlodarczyk, Hand, Duncan Paul; id_orcid, Waddie, Andrew John, Wlodarczyk, Krystian L., Duncan P. Hand, Andrew J. Waddie, Andrew Dunn, Nicholas J. Weston, Matthew D. Kidd, Marcus Ardron, Kidd, Matthew, Waddie, Andrew J., Weston, Nick J., Weston, Nicholas J., Dunn, Andrew, Kidd, Matthew D.   +18 more
core   +1 more source

Damage Characteristics of Aluminum-Coated Grating Irradiated by Nanosecond Pulsed Laser [PDF]

, 2022
An aluminum-coated grating (ACG) is a core component of laser systems and spectrometers. Understanding damage to the ACG induced by nanosecond lasers is critical for future high-power laser applications.
Wenhao Li, Changbin Zheng, Wei Zhang, Fei Chen, Jinghua Yu, Kuo Zhang, Yanhui Ji, Jiamin Wang, Jirigalantu   +8 more
core   +1 more source

Comparative study of ablation processes using femtosecond and nanosecond lasers

Results in Physics
This study investigated the dynamic characteristics of ions emitted from materials subjected to short-pulsed laser interactions. To investigate the difference in ablation dynamics due to laser pulse irradiation with the same energy but different time ...
J.Z. Wang, Y. Kanematsu, A. Muratsugu, F. Matsuda, W. Matsuda, Y. Kawai, M. Toyoda   +6 more
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

Laser-induced forward transfer of intact, solid-phase inorganic materials [PDF]

, 2013
Laser-induced forward transfer (LIFT) is a technique for the micro- and nanofabrication of photonic, electronic and biomedical devices. Compared to conventional methods of device microfabrication, LIFT offers the unique features of transfer of functional
Feinäugle, M., Feinäugle, Matthias
core  

Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells

Advanced Functional Materials, EarlyView.
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam, Wejdan Althobaiti, Safakath Karuthedath, Christopher E. Petoukhoff, Amr Dahman, Khawla Alkhezaim, Oleksandr Matiash, José P. Jurado, Mariia Ferree, Ning Su, Jacob Blaskovits, Denis Andrienko, Vladimir Dyakonov, Andreas Sperlich, Vojtech Nádaždy, Tobin J. Marks, Antonio Facchetti, Frédéric Laquai   +17 more
wiley   +1 more source

Solution‐Processed Mn‐Doped 2d Perovskite Wavelength Shifters for Noble‐Liquid Photon Detection

Advanced Functional Materials, EarlyView.
Solution‐processed Mn2+‐doped PEA2PbBr4 two‐dimensional perovskite films are demonstrated as large‐area wavelength shifters for noble‐liquid photon detectors. Mn2+ incorporation introduces a broad emission band at ∼620 nm with a large Stokes shift, suppressing self‐absorption and matching SiPM sensitivity.
Elisabetta Colantoni, Laura Basiricò, Andrea Ciavatti, Nicolò Tosi, Valentina Cicero, Massimo Loriggiola, Beatrice Fraboni   +6 more
wiley   +1 more source

Hardness determination of bio-ceramics using laser-induced breakdown spectroscopy. [PDF]

, 2011
Laser-Induced Breakdown Spectroscopy (LIBS) was applied to the analysis of bioceramic samples. The relationship between sample hardness and LIBS plasma properties was investigated, with comparison to conventional Vickers hardness measurements.
Moser, D., Pilkington, R.D., Cowpe, J.S., R.D. Moorehead, Crofts, G, S.H. Kilcoyne, Kilcoyne, SH, S. Karthikeyan, Crofts, G., J.S. Astin, Astin, JS, Astin, J.S., Cowpe, JS, Kilcoyne, Susan H., D. Moser, Karthikeyan, S, J.S. Cowpe, G. Crofts, Pilkington, RD, Moser, D, Moorehead, R.D., Moorehead, RD, Karthikeyan, S., R.D. Pilkington   +23 more
core   +1 more source

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, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source