Results 111 to 120 of about 4,729 (265)

Reconfigurable Nanogap SERS for Multiscale Molecular Sensing on Curved Surfaces

Small, EarlyView.
Reconfigurable Au‐coated SMP nanocomposites enable adaptive SERS through reversible tuning of Au─Au nanogaps. Embedded AgNPs serve as photothermal triggers and reinforcements. Wide gaps facilitate macromolecule detection, while narrowed gaps enhance small‐molecule signals for reliable multiscale sensing on curved surfaces.
Goum Min, Jinsoo Na, Yugyeong Kang, Siheon Lee, Byounghyun Jeon, Hanjae Kim, Hyunjun Lee, Beomsoo Chun, Soojeong Yim, Jeonghun Kwak, Youngho Eom, Chang Yeol Lee, Soon Hyoung Hwang, Juhyuk Park   +13 more
wiley   +1 more source

Color gamut characteristics of diffractive-light guides of near-eye augmented reality glasses

iScience
Summary: We delve into the distinctive color gamut characteristics resulting from color dispersion of surface relief grating (SRG) and wavelength degeneracy of volume holographic optical element (VHOE) in a diffractive light guide.
Ching-Cherng Sun, Wen-Kai Lin, Tsung-Hsun Yang, Zih-Fan Chen, Chi Sun, Wei-Chia Su, Shao-Kui Zhou, Yeh-Wei Yu, Tsung-Xian Lee, Chih-Yuan Cheng, Shiuan Huei Lin   +10 more
doaj   +1 more source

Holographic optical system to copy holographic optical elements

, 1991
A holographic system formed by two holographic lenses that, when working with white light, allow selection of a particular wavelength is presented. If adequate spatial and temporal coherence conditions are obtained, it is possible to copy holographic optical elements (HOEs) with partially coherent light by using optical systems formed by holographic ...
Pascual Villalobos, Inmaculada, Beléndez Vázquez, Augusto, Fimia Gil, Antonio   +2 more
openaire   +1 more source

Spatial Filtering of Three-Dimensional Objects Based on Volume Holography

, 2014
[[abstract]]We propose a volume-holographic optical element to perform 3-D object filtering. Theoretical analysis as well as the corresponding experimental measurement of the shifting tolerance of the volume-holographic filter are ...
Sun, Ching-Cherng; Su, Wei-Chia; Hsu, Chih-Yuan; Wu, Chia-How
core  

Emergent Chaos‐Like Dynamics of Spin–Orbit‐Torque‐Driven Magnetic Transitions

Small, EarlyView.
By combining anisotropy‐engineered nanometer‐scale nucleation sites with time‐resolved x‐ray holography and micromagnetic modeling, magnetization dynamics are directly imaged, revealing chaos‐like fluctuations and skyrmion shedding and highlighting the intrinsic complexity of spin‐orbit torque driven systems.
L.‐M. Kern, K. Litzius, V. Deinhart, M. Schneider, C. Klose, K. Gerlinger, R. Battistelli, D. Metternich, D. Engel, C. M. Günther, M.‐J. Huang, K. Höflich, F. Büttner, S. Eisebitt, B. Pfau   +14 more
wiley   +1 more source

Holographic Lens Array for Solar Collector with Large Angle and Expanded Spectral Width

Applied Sciences
Holographic optical elements (HOEs) are promising for solar energy collection due to their advantages of lightweight and high efficiency, but the narrow reconstruction of their angular and spectral widths limits their application.
Changyu Wang, Yuan Xu, Hong Xu, Juan Liu
doaj   +1 more source

Precise 3D Tracking of Highly Non‐Planar Eukaryotic Flagellar Beating Patterns Using Digital Holographic Microscopy

Small Methods, EarlyView.
The 3D beating dynamics of eukaryotic flagella drive motility, sensory functions, and resource acquisition, yet highly non‐planar beating patterns remain poorly characterized. Based on Digital Holographic Microscopy, holoV3C enables label‐free 3D reconstruction of such complex dynamics with 53 nm axial resolution, demonstrated on mouse sperm and ...
Patryk Nienaltowski, Jonasz Słomka, Federica Miano, Thomas Kiørboe, Clara Martínez‐Pérez, Tristan Colomb, Yves Emery, Roman Stocker   +7 more
wiley   +1 more source

HOLOGRAPHIC OPTICAL ELEMENTS FOR BEAUTIFICATION

International Journal of Research in Engineering and Technology, 2013
In this research, holographic optical element appli ed for beautification recorded in holographic surfa ce relief photoresist. Various symmetric periodic structure with high diff raction efficiency in photosensitive material depen ds on various recording geometry parameters are explained.
openaire   +1 more source

Interactive Holographic Stereograms with Accommodation Cues

, 2010
Image-based holographic stereogram rendering methods for holographic video have the attractive properties of moderate computational cost and correct handling of occlusions and translucent objects.
Barabas, James D., James Barabas, Smithwick, Quinn Y. J., Quinn Y. J. Smithwick, Smalley, Daniel E., Bove, V. Michael, Jr., Daniel E. Smalley, V. Michael Bove, Jr.   +7 more
core   +1 more source

From Particle to Purpose: A Systems‐Theoretical Model of Unity and Coherent Adaptation

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This paper develops a conceptual integration that bridges classical systems theories with insights from the Islamic intellectual tradition, focusing on the notion of zerre (particle) as articulated by Said Nursî. We reinterpret zerre as a systems‐theoretical agent that exhibits lawful responsiveness without autonomy, offering a new lens on how
Erhan Atay
wiley   +1 more source