Results 51 to 60 of about 1,597 (185)

Holographic Mapping of Orbital Angular Momentum using a Terahertz Diffractive Optical Neural Network

Advanced Intelligent Discovery, EarlyView.
A compact six‐layer diffractive optical neural network enables direct recognition and spatial mapping of terahertz (THz) orbital angular momentum (OAM) beams. Fabricated by 3D printing, the system distinguishes nine OAM modes and their superpositions with high fidelity, good efficiency, and low crosstalk, offering a scalable solution for THz ...
Wei Jia, Miguel Gomez, Steve Blair, Berardi Sensale‐Rodriguez   +3 more
wiley   +1 more source

Application of Photopolymer Materials in Holographic Technologies

, 2019
The possibility of the application of acrylate compositions and Bayfol HX photopolymers in holographic technologies is considered. The holographic characteristics of materials, their advantages, and limitations in relation to the tasks of obtaining ...
Nadezhda Vorzobova, Pavel Sokolov
core   +1 more source

Wavefront Characteristics of a Digital Holographic Optical Element

Micromachines, 2023
In this study, a 50 × 50 mm holographic optical element (HOE) with the property of a spherical mirror was recorded digitally on a silver halide photoplate using a wavefront printing method.
Beom-Ryeol Lee, José Gil Marichal-Hernández, José Manuel Rodríguez-Ramos, Wook-Ho Son, Sunghee Hong, Jung-Young Son   +5 more
doaj   +1 more source

Desenvolvimento de uma tecnica de ensaio-não-destrutivo utilizando holografia eletronica para detecção de defeitos em cilindros revestidos com borracha [PDF]

, 1994
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoDemonstração teórica e experimental dos conceitos e potencialidades da holografia eletrônica como uma ferramenta efetiva de análise experimental em ensaios não destrutivos
Sousa, André Roberto de
core  

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

Advanced Physics Research, EarlyView.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang, Yong‐shuai Li, Jin‐hui Chen   +2 more
wiley   +1 more source

Application effect of head-mounted mixed reality device combined with 3D printing model in neurosurgery ventricular and hematoma puncture training

BMC Medical Education, 2023
Background The purpose of this study was to explore the applicability of application effect of head-mounted mixed reality (MR) equipment combined with a three-dimensional (3D) printed model in neurosurgical ventricular and haematoma puncture training ...
Yilong Peng, Zhengyuan Xie, Shaoai Chen, Yi Wu, Jiajun Dong, Jinhong Li, Jinlang He, Xiaolei Chen, Hongzhi Gao   +8 more
doaj   +1 more source

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

Electron, 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, Harsh Sable, Sonu Sonu, Lakshita Phor, Reddicherla Umapathi, Pradeep Bhadola   +5 more
wiley   +1 more source

Development of a Digital Hologram Map Using Bathymetric Data

IEEE Access
This study examines the development of hologram maps that provide a precise, intuitive depiction of underwater topography in a genuine three-dimensional format.
Jumamurod Farhod Ugli Aralov, Oybek Mirzaevich Narzulloev, Leehwan Hwang, Philippe Gentet, Seunghyun Lee   +4 more
doaj   +1 more source

3D Conductive Polymer Printed Metasurface Antenna for Fresnel Focusing

Designs, 2019
We demonstrate a 3D printed holographic metasurface antenna for beam-focusing applications at 10 GHz within the X-band frequency regime. The metasurface antenna is printed using a dual-material 3D printer leveraging a biodegradable conductive polymer ...
Okan Yurduseven, Shengrong Ye, Thomas Fromenteze, Benjamin J. Wiley, David R. Smith   +4 more
doaj   +1 more source

Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces

InfoMat, EarlyView.
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley   +1 more source