Results 91 to 100 of about 5,837,988 (197)

An efficient and wide angle coupling of light to a thin film holographic optical element

open access: yesScientific Reports
In this paper, a new method is proposed to achieve wide-angle and efficient coupling of light into a thin film, holographic optical element (HOE). The coupling is based on diffraction of light (the probe beam) by a holographic element.
Mei-Li Hsieh   +3 more
doaj   +1 more source

Guidelines for designing and implementing game‐based learning in comparative anatomy education

open access: yesAnatomical Sciences Education, EarlyView.
Abstract Game‐based learning (GBL) is increasingly used in health professions anatomy education to promote engagement, knowledge acquisition, collaboration, and application of knowledge. However, its application to comparative veterinary anatomy remains fragmented, with limited guidance on how games can be systematically designed around the specific ...
Arthur Chin Haeng Lau   +1 more
wiley   +1 more source

Photopolymer Holographic Optical Elements for Application in Solar Energy Concentrators

open access: yes, 2013
The book chapter reviews recent developments in the design and fabrication of solar concentrators utilising holographic optical elements. The advantages and disadvantages of the use of holographic components in solar energy applications are analysed.
Vincent Toal   +13 more
core   +1 more source

Interferometric Scattering Microscopy (iSCAT): A Perspective on Visualizing and Engineering Electrode Homogeneity for Advanced Lithium‐Ion Batteries

open access: yesCarbon Energy, EarlyView.
Electrode state‐of‐charge heterogeneity critically limits lithium‐ion battery performance and safety. This Perspective highlights iSCAT, a powerful optical technique for real‐time, nanoscale visualization of lithium dynamics within single particles. By revealing the origins of heterogeneity, iSCAT enables rational electrode design.
Hong Zhao   +4 more
wiley   +1 more source

Compositional Changes for Reduction of Polymerisation-Induced Shrinkage in Holographic Photopolymers

open access: yesAdvances in Materials Science and Engineering, 2016
Polymerisation-induced shrinkage is one of the main reasons why many photopolymer materials are not used for certain applications including holographic optical elements and holographic data storage.
D. Cody   +5 more
doaj   +1 more source

Nanophotonic Biosensors and the Paradigm of Trans‐Scale Autonomous Bio‐Integrated Diagnostics for Addressing Health Complexities

open access: yesElectron, EarlyView.
Physics‐driven advances in optical nanobiosensors for rapid, miniaturized, and point‐of‐care diagnostics for next‐generation decentralized and personalized healthcare based on sensor intelligence. ABSTRACT Public health emergencies and the escalating burden of chronic diseases necessitate a paradigm shift from centralized laboratory testing to rapid ...
Vishal Chaudhary   +5 more
wiley   +1 more source

Kaleidoscopic Electromagnetic Wave Manipulation via a Universal Reconfigurable Metasurface Platform

open access: yesElectron, EarlyView.
A multidimensional reconfigurable metasurface enables independent control of the amplitude, phase, polarization, and spectral responses of reflected electromagnetic (EM) waves. Integrating spatial, polarization, and spectral manipulation within a single platform, it provides a versatile solution for intelligent EM systems, next‐generation wireless ...
Wanting Tong   +9 more
wiley   +1 more source

Generating Helical Polymorphic Beams Using Dielectric Metasurfaces

open access: yesLaser &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   +3 more
wiley   +1 more source

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

open access: yesLaser &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 and Analysis of Laser to Fibre Coupling System Using Holographic Optical Element

open access: yes
382-390This paper focuses on design of cost effective, light – weight holographic coupler to couple laser light to optical fibre with reasonably appreciable diffraction efficiency.
Kumar Singh, Ajay   +2 more
core   +1 more source

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