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High Resolution Multiview Holographic Display Based on the Holographic Optical Element [PDF]

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   +2 more sources

Wavefront Characteristics of a Digital Holographic Optical Element [PDF]

open access: yesMicromachines, 2023
In this study, a 50 × 50 mm holographic optical element (HOE) with the property of a spherical mirror was recorded digitally on a silver halide photoplate using a wavefront printing method.
Beom-Ryeol Lee   +5 more
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

Multiplexed Holographic Combiner with Extended Eye Box Fabricated by Wave Front Printing

open access: yesPhotonics, 2022
We present an array-based volume holographic optical element (vHOE) recorded as an optical combiner for novel display applications such as smart glasses.
Tobias Wilm   +3 more
doaj   +1 more source

Lightguide type Maxwellian near-eye display with enlarged horizontal field of view by optical reconfiguration of input image

open access: yesJournal of Information Display, 2022
We present a novel design of the lightguide type optical see-through Maxwellian near-eye display. The proposed display reconfigures vertically long input images to horizontally long output images for wide horizontal viewing-angle.
Woongseob Han   +3 more
doaj   +1 more source

Speckle Noise-Free Interconnective Holographic Projection

open access: yesPhotonics, 2022
Generally, speckle noise is regarded as unavoidable in holographic projection, and it results from unexpected high spatial frequency components of diffracted light at the sharp edge of pixel openings in a spatial light modulator.
Hosung Jeon, Joonku Hahn
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

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

Improving the Holographic Recording Characteristics of a Water-Resistant Photosensitive Sol–Gel for Use in Volume Holographic Optical Elements

open access: yesPhotonics, 2022
Continual improvements to holographic recording materials make the development of volume holographic optical elements increasingly more attainable for applications where highly efficient, lightweight diffractive optical elements can replace conventional ...
Brian Rogers   +5 more
doaj   +1 more source

A Novel Approach for Measurement of Free-Form Optical Elements with Digital Holographic Microscopy

open access: yesMicromachines, 2022
Free-form optical elements face significant challenges in high-precision measurement due to their high complexity and non-rotational symmetry. Digital holographic microscopy (DHM), as one of the methods for the measurement of free-form optical elements ...
Xuhui Zhang   +4 more
doaj   +1 more source

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