Results 1 to 10 of about 19,319 (193)
Photonics, 2021 A wavelength multiplexing procedure for color transmission volume holograms of diffusing objects recorded in Bayfol® HX200 photopolymer is proposed. For the recording, three lasers of 442 nm, 532 nm and 633 nm, and a Spectralon® diffusing object were ...
Marina Sevilla +4 more
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Surface topology modification of organic substrates using material jetting technologies
Materials & Design, 2020 The ability to directly modify the topology of a surface with three-dimensional micron-scale features provides both a mechanism of controlling how it interacts with the surrounding environment and the potential to impart functional features. Using direct
Tiffany Chen +2 more
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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
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Thermal Fringe Formation during a Hologram Recording Using a Dry Photopolymer
Photonics, 2021 In this study we investigated the undesired but possible fringe formation during the recording of large size holographic optical elements (HOE) using a dry photopolymer.
Friedrich-Karl Bruder +2 more
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Wide-Band High Concentration-Ratio Volume-Holographic Grating for Solar Concentration
Sensors, 2020 Efficient and low-cost solar-energy collection has become the focus of many research works. This paper proposes a recording method and an experimental verification of a wide-band, large-angle, and high concentration-ratio volume-holographic grating for ...
Chengchen Wang +4 more
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Machines, 2023 In this work, three types of photopolymer printing plates for packaging printing were subjected to varied UV (ultraviolet radiation) post-treatments, and their surface free energy (SFE) components were calculated.
Davor Donevski +2 more
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Whisker Alignment in Microparts Using Laser Stereolithography with Applied Electric Field
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2013 The purpose of this research is to produce microparts reinforced with unidirectional whiskers using laser stereolithography. Electrically conductive whiskers are added to a liquid photopolymer and an electric field is applied to the liquid photopolymer ...
Takeshi NAKAMOTO +2 more
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Chemical Engineering Transactions, 2020 Stereolithography is a high accuracy additive manufacturing process that uses a laser beam to cure photopolymer resin according to the computer-aided design file.
Khalid W. H. Ahmad +4 more
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Enhanced Polarization Properties of Holographic Storage Materials Based on RGO Size Effect
Molecules, 2023 Polarized holographic properties play an important role in the holographic data storage of traditional organic recording materials. In this study, reduced graphene oxide (RGO) was introduced into a phenanthraquinone-doped polymethylmethacrylate (PQ/PMMA)
Jie Liu +8 more
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Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012 The purpose of this research is to produce micro parts reinforced by unidirectional short fibers using laser stereolithography. Ferromagnetic short fibers are added to a liquid photopolymer and a magnetic field is then applied to the liquid photopolymer,
Takeshi NAKAMOTO, Shinya KOJIMA
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