Results 71 to 80 of about 1,288 (199)

HoloSpec: Dispersion‐Based 4D Computational Holographic Hyperspectral Imaging

Laser &Photonics Reviews, EarlyView.
HoloSpec, a compact dispersion‐based computational holographic system, achieves four‐dimensional imaging by retrieving 3D spatial structure and high‐resolution spectra from only two monochromatic snapshots. Using a single prism and a monochrome sensor, it resolves 430 spectral channels with 3 nm experimental resolution and 30 μm$\mathrm{\mu}\mathrm{m}$
Jingyan Chen, Yuxing Li, Yanmin Zhu, Edmund Y. Lam   +3 more
wiley   +1 more source

Phase and amplitude simultaneously coding metasurface with multi-frequency and multifunctional electromagnetic modulations

Scientific Reports
The integration of multiple functionalities into a single, planar, ultra-compact metasurface has presented significant opportunities for enhancing capacity and performance within compact 5G/6G communication systems.
Chengxin Cai, Yinfei Li, Mingxing Li, Yao Qin, Yangyang Zhou   +4 more
doaj   +1 more source

Simultaneous imaging of neural activity in three dimensions

Frontiers in Neural Circuits, 2014
We introduce a scanless optical method to image neuronal activity in three dimensions simultaneously. Using a spatial light modulator and a custom-designed phase mask, we illuminate and collect light simultaneously from different focal planes and perform
Sean eQuirin, Jesse eJackson, Darcy S Peterka, Rafael eYuste   +3 more
doaj   +1 more source

AWSD Reactive Burn Model for the HMX‐Based High Explosive LX‐04

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT An Arrhenius–Wescott–Stewart–Davis (AWSD) reactive burn model is applied to describe shock initiation and detonation properties of the HMX‐based high explosive LX‐04. The parameters in the model are calibrated to data from multiple sources. The thermodynamic equations of state used in the model are calibrated to a combination of thermochemical
Galen T. Craven, Joshua Finkelstein, Kirill A. Velizhanin, Stephen A. Andrews, Jeffery A. Leiding, Tariq D. Aslam, Matthew A. Price, Christopher Ticknor   +7 more
wiley   +1 more source

Wavefront sensing at a high‐repetition‐rate X‐ray free‐electron laser

Journal of Synchrotron Radiation, EarlyView.
We demonstrate a fast, robust and sensor‐free approach to X‐ray speckle tracking that enables shot‐to‐shot wavefront characterization at high‐repetition‐rate X‐ray free‐electron lasers. Our measurements reveal a hierarchy of wavefront fluctuations indicative of instabilities in the accelerator and beamline optics at the European XFEL.Wavefront ...
Trey Guest, Patrik Vagovič, Luigi Adriano, Johan Bielecki, Sarlota Birnsteinova, Rita Graceffa, Jayanath Koliyadu, Kaye Morgan, Hiiro Moriyama, Daniel Mosko, Grant van Riessen, Kristian Sabol, Tokushi Sato, Peter Szeles, Zane Taylor, Jozef Uličný, Richard Bean, Adrian P. Mancuso, Brian Abbey   +18 more
wiley   +1 more source

Reduction of spherical-aberration impact in microscopy by wavefront coding

Optics Express, 2009
In modern high-NA optical scanning instruments, like scanning microscopes, the refractive-index mismatch between the sample and the immersion medium introduces a significant amount of spherical aberration when imaging deep inside the specimen, spreading out the impulse response.
G, Saavedra, I, Escobar, R, Martínez-Cuenca, E, Sánchez-Ortiga, M, Martínez-Corral   +4 more
openaire   +2 more sources

One million scans later: the evolution of the I16 material and magnetism beamline at Diamond Light Source

Journal of Synchrotron Radiation, EarlyView.
Beamline I16 at Diamond Light Source is a versatile X‐ray scattering instrument that combines tunable X‐ray energy and polarization, flexible diffraction geometries, and advanced sample environments for studies of electronic, magnetic, and structural phenomena.Here, we review the capabilities of beamline I16 at Diamond Light Source after nearly 20 ...
Aly H. Abdeldaim, Rebecca Scatena, James Hawkins, Gareth Nisbet, Daniel G. Porter, Graeme Barlow, Andy Marshall, Brian Nutter, Guillaume Beutier, Stephen P. Collins, Alessandro Bombardi   +10 more
wiley   +1 more source

Achiral light-controlled coding metasurfaces with multi-channel electromagnetic control

Light: Advanced Manufacturing
Programmable digital coding metasurfaces (PDCMs) can manipulate electromagnetic waves with high degrees of freedom, significantly enriching metasurface designs.
Yuxi Li, Ruichao Zhu, Sai Sui, Yajuan Han, Aixia Wang, Yuxiang Jia, Shaojie Wang, Cunqian Feng, Shaobo Qu, Jiafu Wang   +9 more
doaj   +1 more source

Virtual commissioning of the Korea Light Source Hard X‐ray Nanoprobe beamline with multilingual natural language control

Journal of Synchrotron Radiation, EarlyView.
A pre‐installation virtual commissioning platform for the Korea Light Source ID10 hard X‐ray nanoprobe couples browser‐based Monte Carlo ray tracing, EPICS/Bluesky control and a multilingual natural‐language agent (98.2% accuracy in Korean, English and Japanese) under a zero‐change hardware transition principle, producing commissioning design inputs ...
Minho Seo, Hyeong-joo Choi, Dasuel Ham, Changwan Ha, Yong-Hyun Kim, Changhui Lee, Jun Lim, Ki-jeong Kim, In-hui Hwang, Jaeyong Shin   +9 more
wiley   +1 more source

Wave Tracing: Generalizing The Path Integral To Wave Optics

Computer Graphics Forum, EarlyView.
Abstract Modeling the wave nature of light and the propagation and diffraction of electromagnetic fields is crucial for the accurate simulation of many phenomena, yet wave simulations are significantly more computationally complex than classical ray‐based models.
Shlomi Steinberg, Matt Pharr
wiley   +1 more source