Results 11 to 20 of about 4,697 (265)
Photonics, 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
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Holographic optical system to copy holographic optical elements
, 1991 A holographic system formed by two holographic lenses that, when working with white light, allow selection of a particular wavelength is presented. If adequate spatial and temporal coherence conditions are obtained, it is possible to copy holographic optical elements (HOEs) with partially coherent light by using optical systems formed by holographic ...
Pascual Villalobos, Inmaculada +2 more
openaire +3 more sources
Multilayer Smart Holographic Label with Integrated RFID for Product Security and Monitoring
Micromachines, 2023 Counterfeiting presents a major economic problem and an important risk for the public health and safety of individuals and countries. To make the counterfeiting process more difficult, and to ensure efficient authentication, a solution would be to attach
Cătălin Pârvulescu +4 more
doaj +1 more source
Metasurface-Based Holographic Display With All-Dielectric Meta-Axilens
IEEE Photonics Journal, 2021 In a classical metasurface-based holographic display system, a clear holographic reconstruction image can be obtained only in the back-focal-plane of the lens. However, when the receiving plane deviates from the focal plane, the reconstructed holographic
Chuan Shen +4 more
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Frontiers in Physics, 2022 Conventional studies on digital hologram printer have mainly been conducted on image generation and reconstruction such as multi-view image generation method, computer-generated hologram (CGH) and a method of displaying a wave-front for a 3D object ...
Leehwan Hwang +6 more
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Multiplexed Holographic Combiner with Extended Eye Box Fabricated by Wave Front Printing
Photonics, 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
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Augmented reality and virtual reality displays: emerging technologies and future perspectives
Light: Science & Applications, 2021 Emerging holographic optical elements and lithography-based devices are enhancing the performances of augmented reality and virtual reality displays with glasses-like form factor.
Jianghao Xiong +4 more
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Frontiers 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
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Volume Holographic Optical Elements as Solar Concentrators: An Overview
Applied Sciences, 2019 Generally, to reduce the area of a photovoltaic cell, which is typically very expensive, solar concentrators based on a set of mirrors or mechanical structures are used.
Maria Antonietta Ferrara +2 more
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Multiplexed holographic transmission gratings recorded in holographic polymer-dispersed liquid crystals: static and dynamic studies [PDF]
, 2005 The optimization of the experimental parameters of two multiplexed holographic transmission gratings recorded in holographic polymer-dispersed liquid crystals is investigated.
Camacho, Maria +4 more
core +1 more source