Results 1 to 10 of about 4,729 (265)

High Resolution Multiview Holographic Display Based on the Holographic Optical Element

open access: yesMicromachines, 2023
Limited by the low space-bandwidth product of the spatial light modulator (SLM), it is difficult to realize multiview holographic three-dimensional (3D) display.
Xiujuan Qin   +7 more
doaj   +6 more sources

Holographic Element-Based Effective Perspective Image Segmentation and Mosaicking Holographic Stereogram Printing

open access: yesApplied Sciences, 2019
Effective perspective image segmentation and mosaicking (EPISM) method is an effective holographic stereogram printing method, but a mosaic misplacement of reconstruction image occurred when focusing away from the reconstruction image plane.
Fan Fan   +6 more
doaj   +4 more sources

Dual-View Integral Imaging 3D Display Based on Multiplexed Lens-Array Holographic Optical Element

open access: yesApplied Sciences, 2019
We propose a dual-view integral imaging 3D display based on a multiplexed lens-array holographic optical element (MHOE). A MHOE is a volume holographic optical element obtained by multiplexing technology, which can be used for dual-view integral imaging ...
Hanle Zhang   +4 more
doaj   +4 more sources

Planar Black Holes and Entanglement Entropy in Analog Gravity Models [PDF]

open access: yesEntropy
Via constructing an explicit Lagrangian for which the perturbation equations are analogs of a scalar field propagating in a planar black-hole space–time, it is found that all planar black holes conformal to a Painlevé–Gullstrand-type line element can be ...
Neven Bilic, Tobias Zingg
doaj   +2 more sources

An efficient and wide angle coupling of light to a thin film holographic optical element [PDF]

open access: yesScientific Reports
In this paper, a new method is proposed to achieve wide-angle and efficient coupling of light into a thin film, holographic optical element (HOE). The coupling is based on diffraction of light (the probe beam) by a holographic element.
Mei-Li Hsieh   +3 more
doaj   +2 more sources

Flexible Holographic Fabrication of 3D Photonic Crystal Templates with Polarization Control through a 3D Printed Reflective Optical Element

open access: yesMicromachines, 2016
In this paper, we have systematically studied the holographic fabrication of three-dimensional (3D) structures using a single 3D printed reflective optical element (ROE), taking advantage of the ease of design and 3D printing of the ROE.
David Lowell   +7 more
doaj   +3 more sources

Development of holographic printed HOE recording technology with VHG-based FOV analysis for waveguide-type NED system

open access: yesFrontiers in Physics, 2023
We propose a holographic printing–recording technology for near-eye display through volume holographic grating analysis in hologram recording and reconstruction.
Leehwan Hwang, Seunghyun Lee
doaj   +1 more source

Single-Element Reflective Digital Holographic Microscopy

open access: yesFrontiers in Physics, 2021
Digital holographic microscopy (DHM) is a well-known microscopy technique using an interferometric architecture for quantitative phase imaging (QPI) and it has been already implemented utilizing a large number of interferometers.
José Ángel Picazo-Bueno   +2 more
doaj   +1 more source

Efficient Hogel-Based Hologram Synthesis Method for Holographic Stereogram Printing

open access: yesApplied Sciences, 2020
With the development of the holographic printer, printing synthetic hologram requires smaller holographic element (hogel) size to improve spatial resolution of the reconstruction.
Erkhembaatar Dashdavaa   +7 more
doaj   +1 more source

Holographic Fabrication of 3D Moiré Photonic Crystals Using Circularly Polarized Laser Beams and a Spatial Light Modulator

open access: yesMicromachines, 2023
A moiré photonic crystal is an optical analog of twisted graphene. A 3D moiré photonic crystal is a new nano-/microstructure that is distinguished from bilayer twisted photonic crystals.
Noah Hurley   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy