Results 21 to 30 of about 7,503 (250)

Wavefront Control of Millimeter Waves With a VO₂-Based Reconfigurable Meta-Reflectarray

IEEE Access, 2023
In this paper, a novel architecture of a reconfigurable metasurface is proposed and numerically assessed for wavefront control in wireless systems working in the millimeter-wave range.
Mohammad Ali Shameli, Antonio-D Capobianco, Luca Schenato, Marco Santagiustina, Domenico De Ceglia   +4 more
doaj   +1 more source

Dynamics of laser-induced tunable focusing in silicon

Scientific Reports, 2022
We report here on focusing of a probe IR (λ = 1.55 μm) laser beam in silicon. The focusing is done by a second pump laser beam, at λ = 0.775 μm and 30 ps pulse width, with a donut shape that is launched collinearly and simultaneously (with some delay ...
Nadav Shabairou, Maor Tiferet, Zeev Zalevsky, Moshe Sinvani   +3 more
doaj   +1 more source

A Comprehensive Review on Static Laser Beam Shaping: Solution for Welding Challenges in E-Vehicle Battery Manufacturing

Applied Sciences
The increasing demand for reliable and high-performance electric vehicle (EV) batteries requires precise and defect-free welding of battery components.
Zia Uddin, Erica Liverani, Alessandro Ascari, Alessandro Fortunato   +3 more
doaj   +1 more source

Inverse design of perimeter-controlled InAs-assisted metasurface for two-dimensional dynamic beam steering

Nanophotonics, 2022
The current commercially viable light detection and ranging systems demand continuous, full-scene, and dynamic two-dimensional point scanning, while featuring large aperture size to ensure long distance operation.
Sabri Raana, Mosallaei Hossein
doaj   +1 more source

Experimental and numerical investigation on the dynamic shear failure mechanism of sandstone using short beam compression specimen

Journal of Rock Mechanics and Geotechnical Engineering, 2023
In this study, a novel testing method is proposed to characterize the dynamic shear property and failure mechanism of rocks by introducing the short beam compression (SBC) specimen into the split Hopkinson pressure bar (SHPB) system.
Zelin Yan, Feng Dai, Yi Liu
doaj   +1 more source

Dynamic shaping of orbital-angular-momentum beams for information encoding

Optics Express, 2018
Shaping complex fields with a digital micromirror device (DMD) has attracted much attention recently due to its potential application in optical communication and microscopy. In this paper, we present an optimized Lee method to achieve dynamic shaping of orbital-angular-momentum (OAM) beams using a binary DMD. An error diffusion algorithm is introduced
Xinyao, Hu, Qian, Zhao, Panpan, Yu, Xuanling, Li, Ziqiang, Wang, Yinmei, Li, Lei, Gong   +6 more
openaire   +2 more sources

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Dynamic spatial beam shaping for ultrafast laser processing: a review

Opto-Electronic Science
This review examines the state-of-the-art in spatial manipulation of ultrafast laser processing using dynamic light modulators, with a particular focus on liquid crystal-based systems.
Cyril Mauclair, Bahia Najih, Vincent Comte, Florent Bourquard, Martin Delaigue   +4 more
doaj   +1 more source

Electrically tunable metasurface by using InAs in a metal–insulator–metal configuration

Nanophotonics, 2022
The ability of modulating optical properties at a lateral subwavelength scale is of crucial importance due to its potential applications for wide-angle holographic displays, optical communications, and interferometric sensors.
Park Junghyun, Kim Seong Jun, Sorger Volker J., Kim Soo Jin   +3 more
doaj   +1 more source