Results 71 to 80 of about 5,247 (233)
A holographic GRIN lens for broadband, highly directive, and aberration-free echo detection
International Journal of Extreme ManufacturingDirecting wave energy through strongly aberrating media poses a fundamental challenge in wave physics. This problem is especially critical in underwater acoustics, where the hydrodynamic domes of autonomous underwater vehicles inevitably distort sonar ...
Jinhu Zhang +9 more
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IEEE AccessProjection-type holographic displays are three-dimensional (3D) displays that utilize computer holography. These displays consist of a projection lens and a transparent holographic optical element (HOE) with off-axis concave mirror phase distribution and
Tomoki Kanno +6 more
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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 +2 more
wiley +1 more source
An automatic holographic adaptive phoropter
, 2017 Phoropters are the most common instrument used to detect refractive errors. During a refractive exam, lenses are flipped in front of the patient who looks at the eye chart and tries to read the symbols. The procedure is fully dependent on the cooperation
Nickolaos Savidis +11 more
core +1 more source
Achromatic 3D Multi‐Color Orbital Angular Momentum Holography
Advanced ScienceOrbital angular momentum (OAM) holography represents a transformative technique for enhancing the information channel capacity of holographic systems through the convolution of theoretical infinite OAM states with discrete sampling target images. However,
Hang Su +5 more
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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 +5 more
wiley +1 more source
, 2008 The purpose of this work is to study the potentialities of phase-shifting real-time holographic interferometry for the analysis of light-induced lens in photoreffactive and nonlinear optical materials.
Gesualdi, Marcos R. R. +4 more
core +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
Holographic photopolymers applied to biosensing and efficient energy [PDF]
, 2023 Holographic photopolymers can be used for two breakthrough applications, biosensing, and efficient energy. Related to biosensing a real challenge is to store time-stable holographic gratings in hydrogel matrices immersed in aqueous media.
Lloret, Tomás +6 more
core
Foveated near-eye display for mixed reality using liquid crystal photonics
Scientific Reports, 2020 Foveated near-eye display is one of the most promising approaches to deliver immersive experience of mixed reality. However, it is challenged to conceive a compact optical system.
Seungjae Lee +6 more
doaj +1 more source