Results 51 to 60 of about 4,729 (265)

Volume Holographic Optical Elements [PDF]

Optical Engineering, 2004
Optical engineering continues to impact more and more modern devices for communication, color display, data storage, illumination, and remote sensing in the new millenium. The amalgamation of modern optics and associated microelectronic technologies has paved the road to greatly enhance new optoelectronic devices with practical applications.
openaire   +1 more source

Multifacet holographic optical elements [PDF]

ICALEO '83: Proceedings of the Information Processing and Holography Symposium, 1983
Holographic optical elements are an attractive alternative to conventional optical elements in systems using light with a narrow spectral bandwidth. The attributes of holographic optical elements include the capability of producing low f/number diffraction limited optics, and the ability to generate arbitrary wavefronts.
S. K. Case, H. O. Bartelt, P. R. Haugen, L. R. Konicek   +3 more
openaire   +1 more source

An advanced finite element system for static and dynamic analysis-with application to the design of radial impellers [PDF]

, 1987
An advanced finite-element package, tailored to the static and dynamic analysis of radial impellers has been produced. Two families of new elements, one for thin and thick plates and the other for thin and thick shells, have been derived ...
Al-Azzawi, Mohammad Mousa
core  

Direct multiplexing of low order aberration modes in a photopolymerbased holographic element for analog holographic wavefront sensing

, 2021
The fabrication of an analog holographic wavefront sensor, capable of detecting the low order defocus aberration, was achieved in an acrylamide-based photopolymer.
Branigan, Emma, Martin, Suzanne, Sheehan, Matthew, Murphy, Kevin   +3 more
core   +1 more source

Harnessing Ultrafast Optical Pulses for 3D Microfabrication by Selective Tweezing and Immobilization of Colloidal Particles in an Integrated System

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna, Jieliyue Sun, Wenyu Liu, Robert H. Hurt, Kimani C. Toussaint Jr.   +4 more
wiley   +1 more source

Novel Non‐Cytotoxic Acylphosphinates and Acylphosphine Oxides Photoinitiators

Angewandte Chemie, EarlyView.
Novel acylphosphine oxide (APO) and acylphosphinate photoinitiators based on DPO and DOPO were designed to investigate structure–property relationships including photochemical performance, polymerization efficiency and cytotoxicity. While DPO derivatives showed excellent reactivity, DOPO‐based systems also displayed good efficiency and significantly ...
Jiansong Yin, Yijun Zhang, Bernadette Graff, Céline Dietlin, Michael Schmitt, Fabrice Morlet‐Savary, Tatiana Petithory, Laurent Pieuchot, Jing Zhang, Xiaotong Peng, Yangyang Xu, Jean‐Michel Becht, Pu Xiao, Jacques Lalevée   +13 more
wiley   +2 more sources

Contact lens holographic projection display based on curved volume-holographic optical element

ETRI Journal
Wearable devices for augmented reality (AR) have gained considerable atten-tion but research on contact lenses remains scarce. This study introduces an AR display that utilizes a contact lens integrated with a holographic projection display and a curved ...
Jin Su Lee
doaj   +1 more source

Real‐Time Holographic Feedback via Mixed Reality Sensorized Laryngoscope Training System Enhances Pediatric Intubation Training

Advanced Robotics Research, EarlyView.
We proposed a Mixed Reality Sensorized Laryngoscope Training System to provide real‐time holographic torque feedback during pediatric endotracheal intubation simulation. Visualization formats are evaluated to reduce tracking error and visual demand.
Jiaqi Li, Ryman Hashem, Ningzhe Hou, Perla Maiolino, Louis Halamek, Liang He   +5 more
wiley   +1 more source

HOLOGRAPHIC OPTICAL ELEMENT WAVELENGTH MULTI-DEMULTIPLEXER IN THE NEAR INFRARED.

, 1986
Two methods performing wavelength division multiplexing or wavelength division demultiplexing in the near infrared region and using volume transmission holographic optical element are presented.
F. M. De Schryver, De Schryver, Fabien
core   +1 more source

Integrated Ultrasonic Platform for Bioelectronic Control through Biological Barriers Based on Metasurface

Advanced Science, EarlyView.
A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang, Hanjie Xiao, Xue Jiang, Dean Ta   +3 more
wiley   +1 more source