Results 31 to 40 of about 16,987 (218)
A new objective quality metric for phase hologram processing
ETRI Journal, 2021 Because of its convenience and compatibility with various image processing techniques, digital image representation of holograms is generally used in digital holography, and thus, quality assessment of digital holograms is an essential issue.
Kwan-Jung Oh, Jinwoong Kim, Hui Yong Kim
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Multimodal Mixed Reality Impact on a Hand Guiding Task with a Holographic Cobot
Multimodal Technologies and Interaction, 2020 In the context of industrial production, a worker that wants to program a robot using the hand-guidance technique needs that the robot is available to be programmed and not in operation.
Andoni Rivera Pinto +2 more
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Experimental study on Fe: LiNbO3 crystal angular multiplexing holography
上海师范大学学报. 自然科学版, 2019 In this paper,the recording and readout characteristics of photorefractive volume hologram were studied by using Fe:LiNbO3 crystal as the recording medium.The optical experimental setup for angular multiplexing photorefractive volume holographic was ...
TANG Ming +4 more
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Advanced Materials, EarlyView.Cross‐sectional Lorentz TEM and off‐axis electron holography visualize the magnetic domain structure and quantify interlayer coupling in Fe3GeTe2/graphite/Fe3GeTe2 heterostructures. A stray‐field coupling length of 37±$\pm$7 nm marks the onset of domain misalignment between the layers.
Joachim Dahl Thomsen +6 more
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Aberration‐Corrected Holographic Optical Elements Based on Consistent Shapes of Printed Hogels
Advanced Photonics ResearchHerein, a holographic optical element (HOE) printing technique which maintains shapes and sizes of hogels across diverse focal positions, and aberration‐corrected HOEs which are fabricated by it are proposed. The proposed HOE printer employs nonpixelated
Jiwoon Yeom +4 more
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Monolithically 3D‐Printed Spectral‐Spatial Meta‐Authenticators
Advanced Materials, EarlyView.A single height map printed in a low‐index resin by two‐photon lithography encodes multiple visible wavelengths in one metasurface without any polarization optics. A fabrication‐aware optimization folds the printable height levels into the design, so the device is printed as optimized.
Cherry Park +3 more
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Nanophotonics, 2023 Metalenses have potential to replace various bulky conventional optical elements with ultrathin nanostructure arrays. In particular, active metalenses with reconfigurable focusing capability have attracted considerable interest from the academic and ...
Jung Joonkyo, Kim Hyeonhee, Shin Jonghwa
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Zero order synthetic hologram with a sinusoidal phase carrier for generation of multiple beams [PDF]
, 2009 We discuss a phase synthetic hologram, for encoding arbitrary complex fields, whose design is based on a sinusoidal phase grating with a spatially modulated phase depth.
VICTOR MANUEL ARRIZON PEÑA +2 more
core
Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications
Advanced Materials Technologies, EarlyView.Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja +9 more
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