Results 251 to 260 of about 96,711 (321)
Free‐space Optical Computing Systems
Annalen der Physik, Volume 537, Issue 6, June 2025.Manipulation and propagation of optical wavefronts in free space enables new intelligent computing hardware. Two types of optical computing systems, matrix and vector multiplication systems and diffractive optical neural network systems, are reviewed from material, device, and system aspects.
Ruiyang Chen, Weilu Gao
wiley +1 more source
Recent Advances in Dielectric Chiral Metasurfaces
Advanced Physics Research, Volume 4, Issue 6, June 2025.This review article mainly focuses on the recent advances in dielectric chiral metasurfaces, which exhibit remarkable optical chirality. Many new physical conceptions will be introduced during the fast development of the dielectric chiral metasurfaces, such as chiral quasi‐BIC, chiral guided modes, and nonlocal metasurfaces.
Zhipeng Hu +6 more
wiley +1 more source
High-accuracy wavefront sensing by phase diversity technique with bisymmetric defocuses diversity phase. [PDF]
Sci Rep, 2017 Zhang P +5 more
europepmc +1 more source
A Roadmap to Holographic Focused Ultrasound Approaches for Generating Gradient Thermal Patterns
International Journal for Numerical Methods in Biomedical Engineering, Volume 41, Issue 6, June 2025.This study introduces a comprehensive roadmap for acousto‐thermal computational modeling approaches in the design of acoustic holographic lenses (AHLs) for therapeutic applications. Pressure‐based, temperature‐based, and machine‐learning techniques are compared using four different shape groups for the imposed target pattern.
Ceren Cengiz +5 more
wiley +1 more source
<i>In-vivo</i> digital wavefront sensing using swept source OCT. [PDF]
Biomed Opt Express, 2017 Kumar A +5 more
europepmc +1 more source
Model-based aberration corrected microscopy inside a glass tube. [PDF]
J MicroscAbstract Microscope objectives achieve near diffraction‐limited performance only when used under the conditions they are designed for. In nonstandard geometries, such as thick cover slips or curved surfaces, severe aberrations arise, inevitably impairing high‐resolution imaging.
Cox DWS, Knop T, Vellekoop IM.
europepmc +2 more sources
Transactions on Emerging Telecommunications Technologies, Volume 36, Issue 6, June 2025.This paper explicitly reviews the state‐of‐the‐art RIS‐assisted wireless networks, especially open challenges relating to the B5G and 6G networks. This work presents an intensive study of recent research on RIS to provide an in‐depth understanding of the underlying principles surrounding RIS operations, composition, and effect on EM waves.
Chukwuemeka Nwufo +2 more
wiley +1 more source
Sensing Dog Brain Reactions to Smell by AI Speckle Pattern Analysis
Journal of Biophotonics, Volume 18, Issue 6, June 2025.The setup of our experiment is shown on Labrador, Johny, a canine participant of our research. The schematic of the setup features: green laser, digital camera, source of smell, and computer. Regions of the brain that were tested are highlighted. Note that the hippocampus and amygdala are on both sides of the dog's brain.
Ilana Propp +5 more
wiley +1 more source
Journal of Arrhythmia, Volume 41, Issue 3, June 2025.Tripolar Laplacian electrogram (TLE) is one of the multipolar electrograms. TLE has a lower voltage amplitude than bipolar electrograms for all activation patterns and wavefront angles, and it removes more noise and far‐field potentials. TLE is useful for analyzing low‐voltage and fractionated electrograms regardless of the wavefront angle.
Soichiro Yamashita +7 more
wiley +1 more source