Results 101 to 110 of about 4,729 (265)

Pancharatnam–Berry Phase Driven by Electrical Restructuring of Liquid Crystal Polarization Grating Period

open access: yesLaser &Photonics Reviews, EarlyView.
Electrically controlled liquid‐crystal twist diffraction element based on the Pancharatnam–Berry phase enables switchable structural periodicity and simultaneous generation of orthogonal circularly polarized coherent waves for multifunctional planar photonic devices.
Elena Melnikova   +7 more
wiley   +1 more source

Development and assessment of case-specific physical and augmented reality simulators for intracranial aneurysm clipping

open access: yes3D Printing in Medicine
Background Microsurgical clipping is a delicate neurosurgical procedure used to treat complex Unruptured Intracranial Aneurysms (UIAs) whose outcome is dependent on surgeon’s experience.
Lorenzo Civilla   +9 more
doaj   +1 more source

Responsive Phase Gradient Metasurface for Laser Stealth and Dynamic Thermal Camouflage

open access: yesLaser &Photonics Reviews, EarlyView.
The graphical abstract depicts a phase‐gradient metasurface enabling directional scattering and emissivity‐controlled thermal radiation. The engineered phase profile redistributes the reflected optical momentum, suppressing specular reflection and generating non‐specular scattering.
Zhihao Yuan   +7 more
wiley   +1 more source

Curved geometric-phase optical element fabrication using top-down alignment

open access: yesNanophotonics
Advanced optical technologies, such as next-generation displays and holographic systems, demand high efficiency, lightweight designs, compact dimensions, and compatibility with curved and thin substrates.
Park Gayeon   +3 more
doaj   +1 more source

Polarizing holographic beam splitter on photoresist

open access: yes, 1995
peer reviewedDesigning of polarizing holographic optical ...
Habraken, Serge   +3 more
core   +1 more source

Wavelength and Full‐Polarization Encrypted Orbital Angular Momentum Meta‐Holography

open access: yesLaser &Photonics Reviews, EarlyView.
By multiplexing three independent degrees of freedom of light, a single‐layer geometric‐phase metasurface encrypts 24 distinct holographic images across 3 wavelengths, 12 pairs of orthogonal polarizations, and 4 OAM channels, taking advantage of axial chromatic dispersion to reconstruct the color images at the same plane. ABSTRACT Multiplexing multiple
Yue Han   +5 more
wiley   +1 more source

Holographic waveguides recorded on photopolymer material [PDF]

open access: yes, 2019
In this work we present a study of Holographic waveguides recorded in photopolymers. The holographic waveguides presented in this work are created by recording two holograms in a glass substrate; the first hologram acting as an in-coupler element, and ...
Gallego, Sergi   +5 more
core  

Grating‐Lens Empowered Metafiber for Large‐Angle Light Collection With 3D Nanoprinted Structures

open access: yesLaser &Photonics Reviews, EarlyView.
A grating‐lens‐based Metafiber enables efficient light coupling into single‐mode fibers at large incidence angles. By combining diffraction and focusing on the fiber facet using a 3D nanoprinted holographic structure, light is selectively coupled only at specific angles while suppressing unwanted signals. This approach achieves high coupling efficiency
Jun Sun, Markus A. Schmidt
wiley   +1 more source

The Application of Telemedicine in Surgery

open access: yesMed 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   +8 more
wiley   +1 more source

One-in-hundreds-out laser splitting generated by diffraction of single holographic optical element

open access: yes, 2006
Conference Name:Conference on Optoelectronic Materials and Devices. Conference Address: Gwangju, SOUTH KOREA. Time:SEP 05-07, 2006.Technique using a holographic optical element to split one incident laser beam into hundreds is proposed.
张向苏   +6 more
core  

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