Results 11 to 20 of about 659,213 (221)

Single Lens Holographic Imaging

open access: yes, 2017
Metasurface phase masks offer a new way of imaging in that the lens sizes are orders of magnitude smaller and allow for batch fabrication of a large number of miniature lenses. Unfortunately, current metasurface lens technology cannot simultaneously overcome the issues of image distortion for objects far from the optical axis and chromatic aberrations.
Ding, Leon
openaire   +2 more sources

Holographic Lens Array for Solar Collector with Large Angle and Expanded Spectral Width

open access: yesApplied Sciences
Holographic optical elements (HOEs) are promising for solar energy collection due to their advantages of lightweight and high efficiency, but the narrow reconstruction of their angular and spectral widths limits their application.
Changyu Wang, Yuan Xu, Hong Xu, Juan Liu
doaj   +2 more sources

Holographic Lens Resolution Using the Convolution Theorem. [PDF]

open access: yesPolymers (Basel), 2022
The similarity between object and image of negative asymmetrical holographic lenses (HLs) stored in a low-toxicity photopolymer has been evaluated theoretically and experimentally. Asymmetrical experimental setups with negative focal lengths have been used to obtain HLs.
Lloret T   +5 more
europepmc   +3 more sources

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

open access: yesETRI 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   +2 more sources

High-efficiency, broadband, and low-crosstalk 3D holography by multi-layer holographic-lens integrated metasurface

open access: yesAPL Photonics
Holographic display is considered the holy grail of photorealistic three-dimensional (3D) visualization technology because it can provide arbitrary wavefronts related to the essential visual cues of 3D images.
Shuo Sun   +5 more
doaj   +2 more sources

Metasurface-Based Multidimensional Light-Field Manipulation: From Technologies to Applications. [PDF]

open access: yesAdv Sci (Weinh)
Multidimensional metasurfaces enable versatile manipulation of multiple optical degrees of freedom, including phase, amplitude, polarization, wavelength, and orbital angular momentum. This review summarizes their fundamental mechanisms, emerging strategies for multidimensional light‐field control, and key applications in optical computing, imaging ...
Yin H   +6 more
europepmc   +2 more sources

Polarization Holographic 4D Phenotyping Reveals Nanoplastic Induced Dysfunction in Zooplankton. [PDF]

open access: yesAdv Sci (Weinh)
Contaminant‐induced dysfunction in complex aquatic organisms remains difficult to resolve across scales. Polarization Holographic Imaging Microscopy (PHIM) integrates polarization‐sensitive holography with computational volumetric reconstruction for label‐free phenotyping of zooplankton in natural seawater, revealing that nanoplastic stress drives ...
Li Y   +8 more
europepmc   +2 more sources

Off-axis transmission holographic system for recording aquatic particles [PDF]

open access: yes, 1996
We describe a holographic system for recording particles suspended in water. The hologram plate is located in air, separated from the test tank by an air/glass/water boundary. The holographic emulsion is therefore unaffected by adverse aquatic conditions
Lampitt, RS   +4 more
core   +5 more sources

Simulated holographic three-dimensional intensity shaping of evanescent-wave fields [PDF]

open access: yes, 2008
The size of bright structures in traveling-wave light fields is limited by diffraction. This in turn limits a number of technologies, for example, optical trapping.
Thomson, L.C.   +7 more
core   +1 more source

Photopolymer-based volume holographic optical elements: design and possible applications [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2015
In this paper, Volume Holographic Optical Elements (V-HOEs), such as holographic gratings and spherical lenses, are designed and fabricated by using a prototype of photopolymer.
Bianco G.   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy