Results 61 to 70 of about 4,717,735 (155)

Generating Helical Polymorphic Beams Using Dielectric Metasurfaces

Laser &Photonics Reviews, EarlyView.
Helix‐shaped polymorphic beams are optical fields whose intensity maxima spiral around the propagation axis, enabling particle manipulation through attractive or repulsive forces. Traditionally requiring expensive spatial light modulators, metasurfaces now provide a compact, cost‐effective alternative. This work demonstrates general helical polymorphic
Maryam Setareh, Yang Xu, Jose A. Rodrigo, Kenneth B. Crozier   +3 more
wiley   +1 more source

Nonlocal Leaky Mode Metasurfaces for Mode‐, Angle‐, and Polarization‐Multiplexed Holography With Thermal Light

Laser &Photonics Reviews, EarlyView.
Nonlocal leaky mode metasurfaces reconstruct multiplexed holograms directly from unfiltered thermal light. High‐Q leaky guided modes compress broadband halogen emission into narrowband channels, enhancing temporal coherence a hundredfold, while a single nanohole array encodes independent images addressed by mode, angle, and polarization, establishing ...
Rajat Kumar Sinha, Mo Mojahedi
wiley   +1 more source

Design of optical head with holographic optical element for small form factor drive systems

, 2014
An optical head composed of an optical module and a biaxial actuator is designed for small form factor drives. This system adopts a finite-conjugate objective lens with numerical aperture 0.65 for 654-nm wavelength.
Lee, K.J., Chang, C.S., 施錫富, Chang, C.L., Shih, H.F.   +4 more
core   +1 more source

Misalignment‐Robust Dynamic Cascaded Holography Accelerated by Deep Neural Networks

Laser &Photonics Reviews, EarlyView.
Cascaded holography has mainly been studied using metasurfaces. Here, we demonstrate a fully dynamic cascaded holographic system based on two phase‐only spatial light modulators. A misalignment‐tolerant optimization method preserves image quality despite alignment errors, making cascaded holographic systems simpler, more reliable, and easier to use in ...
Gyeongsu Jin, Seokmin Kim, Seung‐Yeol Lee   +2 more
wiley   +1 more source

The Application of Telemedicine in Surgery

Med Research, EarlyView.
This figure provides an overview of the content presented in this article. Telemedicine is integrated throughout the entire surgical workflow, with distinct applications across the preoperative, intraoperative, and postoperative phases. These applications are enabled by a suite of supporting technologies, while the associated implementation challenges ...
Yufan Yang, Chang Liu, Xue Sun, Yiting Wang, Minghui Zhao, Shuya Jiang, Haoling Zhang, Wangzheqi Zhang, Wenwen Shi   +8 more
wiley   +1 more source

Vortex Domain Wall Imaging in a 3D Magnetic Nanotube Grown by Focused Electron Beam Induced Deposition

Small, EarlyView.
Synthesis of nanoscale high‐purity Co magnetic nanotubes using a single growth technique, focused electron beam induced deposition (FEBID). Utilizing electron holography and micromagnetic simulations, we demonstrate the nucleation and pinning of tilted vortex domain walls, providing crucial experimental evidence to advance 3D spintronics and ...
Javier Pablo‐Navarro, Luis Alfredo Rodríguez, Christophe Gatel, Ingrid Marie Andersen, Etienne Snoeck, José María De Teresa, César Magén   +6 more
wiley   +1 more source

Holographic Element-Based Effective Perspective Image Segmentation and Mosaicking Holographic Stereogram Printing

, 2019
Effective perspective image segmentation and mosaicking (EPISM) method is an effective holographic stereogram printing method, but a mosaic misplacement of reconstruction image occurred when focusing away from the reconstruction image plane.
Xingpeng Yan, Chao Han, Jun Wen, Xiaoyu Jiang, Teng Zhang, Fan Fan, Song Chen   +6 more
core   +1 more source

An edge-lit volume holographic optical element for an objective turret in a lensless digital holographic microscope. [PDF]

Sci Rep, 2020
Yu YW, Sun CC, Hsieh PK, Huang YH, Song CY, Yang TH.   +5 more
europepmc   +1 more source

Detection and Inhalation Hazard Assessment of Wear Particles Arising From Abrasion of Market‐relevant Graphene Reinforced Composites

Small, EarlyView.
Abrasion of few‐layer graphene (FLG)–epoxy composites generated respirable particles in which FLG remained fully embedded, as confirmed by correlative HR‑TEM, Raman, and ToF‑SIMS analyses. Advanced lung cell models revealed no cytotoxic or inflammatory responses, and only high‑dose epoxy particles reduced mucociliary clearance.
Govind Gupta, Jimmy Vernaz, Antje Vennemann, Maike Stange, Asmus Meyer‐Plath, Servane Contal, Sarah Zehnder, Ziting Wang, Aline Chary, Stephanie Eitner, Philipp Mueller, Vera M. Kissling, Samuel Constant, Lucie Chupin, Daniel Breitenstein, Birgit Hagenhoff, Tommaso Serchi, Bernadett Boda, Martin Wiemann, Peter Wick, Tina Buerki‐Thurnherr   +20 more
wiley   +1 more source

Optimized holographic optical traps

, 2005
Holographic optical traps use the forces exerted by computer-generated holograms to trap, move and otherwise transform mesoscopically textured materials.
Lee, Sang-Hyuk, Grier, David G., Polin, Marco, Ladavac, Kosta, Roichman, Yael   +4 more
core   +1 more source