Results 1 to 10 of about 3,356 (163)
Volume Holographic Optical Elements as Solar Concentrators: An Overview
Applied Sciences (Switzerland), 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 +1 more
exaly +3 more sources
Wavefront-aberration-tolerant diffractive deep neural networks using volume holographic optical elements. [PDF]
Sci RepAs the demand for computational performance in artificial intelligence (AI) continues to increase, diffractive deep neural networks (D2NNs), which can perform AI computing at the speed of light by repeated optical modulation with diffractive optical ...
Hoshi I, Wakunami K, Ichihashi Y, Oi R.
europepmc +2 more sources
Photonics, 2021 An optical see-through two-dimensional (2D)/three-dimensional (3D) compatible display using variable-focus lens and multiplexed holographic optical elements (MHOE) is presented. It mainly consists of a MHOE, a variable-focus lens and a projection display
Huan Deng, Deng Huan
exaly +3 more sources
Advanced Photonics Research, 2021 Holographic optical elements (HOEs) exhibit several unique properties in arbitrary wavefront recording and extraction. Versatile recording mechanisms and material availabilities further expand their design flexibilities.
Shin-Tson Wu, Kun Yin, Jianghao Xiong
exaly +2 more sources
Holographic Optical Lenses Recorded on a Glassy Matrix-Based Photopolymer for Solar Concentrators
Photonics, 2021 Global warming is a very topical issue, therefore the search for new renewable energy sources is considered of fundamental importance. Among these, solar energy offers great possibilities considering that the amount of sunlight hitting the Earth ‘s ...
Maria Antonietta Ferrara +2 more
doaj +1 more source
Light: Advanced Manufacturing, 2022 This paper presents the results of 15 years of studies in the field of terahertz holography at the Novosibirsk free electron laser. They cover two areas: research on obtaining holographic images in the terahertz range and the use of diffractive optical ...
Yulia Choporova +2 more
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Journal 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
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Image Quality for Near-Eye Display Based on Holographic Waveguides
Applied Sciences, 2022 The paper analyzes the image quality in augmented reality display based on holographic waveguides. Brightness, brightness non-uniformity, image noise, etc., depend on the parameters of the waveguide substrate, the configuration, and the relief shape of ...
Artem Solomashenko +4 more
doaj +1 more source
Applied Sciences, 2021 Diffractive optical elements (DOEs) have been in development for many years and are an exciting technology with the capability to re-direct light, using diffraction rather than refraction.
Sanjay Keshri +5 more
doaj +1 more source
Photopolymer-based volume holographic optical elements: design and possible applications [PDF]
Journal 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
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