Results 11 to 20 of about 1,305 (184)

Holographic Whole-Object Photopolymerization Preserving Director Alignment in Liquid Crystalline Actuators. [PDF]

Adv Mater
Holographic microlithography enables the fabrication of fully connected 3D liquid crystalline structures in a single exposure. The process maintains precise control over the director orientation within the entire object, preventing local director distortions typically observed in sequential printing.
Gulati L, Lee J, Norouzikudiani R, Li J, Somolinos CS, DeSimone A, Melde K, Song A, Fischer P.   +8 more
europepmc   +2 more sources

Development of holographic printed HOE recording technology with VHG-based FOV analysis for waveguide-type NED system

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
doaj   +1 more source

Recording of Full-Color Snapshot Digital Holographic Portraits Using Neural Network Image Interpolation

Applied Sciences, 2023
For 60 years, high-energy pulsed lasers have enabled the recording of extremely realistic portraits of living people within a few nanoseconds. In the 21st century, this confidential technique, which requires great skill and equipment, has almost ...
Philippe Gentet, Matteo Coffin, Yves Gentet, Seung-Hyun Lee   +3 more
doaj   +1 more source

Efficient Hogel-Based Hologram Synthesis Method for Holographic Stereogram Printing

Applied Sciences, 2020
With the development of the holographic printer, printing synthetic hologram requires smaller holographic element (hogel) size to improve spatial resolution of the reconstruction.
Erkhembaatar Dashdavaa, Anar Khuderchuluun, Hui-Ying Wu, Young-Tae Lim, Chang-Won Shin, Hoonjong Kang, Seok-Hee Jeon, Nam Kim   +7 more
doaj   +1 more source

Three-Dimensional (3D) Printing Implemented by Computer-Generated Holograms for Generation of 3D Layered Images in Optical Near Field

Photonics, 2021
Photocurable three-dimensional (3D) printing is a stepwise layer-by-layer fabrication process widely used in the manufacture of highly specialized objects.
Chung-Fei Lee, Wei-Feng Hsu, Tzu-Hsuan Yang, Ren-Jei Chung   +3 more
doaj   +1 more source

Holographic photopolymerization combined to microfluidics for the fabrication of lab-in-lab microdevices and complex 3D micro-objects

Heliyon, 2023
We show here brand-new possibilities of lab-in-lab fabrication while combining holographic photopolymerization and microfluidics. One shot real-time 3D-printing can produce 3D architectured microchannels, or free-standing complex micro-objects eventually
Abhijeet Lale, Colman Buckley, Vincent Kermène, Agnès Desfarges-Berthelemot, Frédéric Dumas-Bouchiat, Emmanuel Mignard, Fabrice Rossignol   +6 more
doaj   +1 more source

Pixelated bifunctional metasurface-driven dynamic vectorial holographic color prints for photonic security platform

Nature Communications, 2021
The authors present a bi-functional metasurface, combining structural color printing observed under white light and polarization encoded It is appropriate. vectorial holography.
Inki Kim, Jaehyuck Jang, Gyeongtae Kim, Jihae Lee, Trevon Badloe, Jungho Mun, Junsuk Rho   +6 more
doaj   +1 more source

Non‐Interleaved Four‐Channel Metasurfaces for Simultaneous Printing and Holographic Imaging

Small Structures, 2023
Simultaneous realization of printing and holographic images has become an emerging and promising technology for optical storage and anti‐counterfeiting, which can significantly enhance the information capacity and security of an optical system. Herein, a
Yue Gou, Hui Feng Ma, Shi Sun, Tai Yi Zhang, Liang Wei Wu, Zheng Xing Wang, Sen Zheng, Tie Jun Cui   +7 more
doaj   +1 more source

High Resolution Multiview Holographic Display Based on the Holographic Optical Element

Micromachines, 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, Xinzhu Sang, Hui Li, Rui Xiao, Chongli Zhong, Binbin Yan, Zhi Sun, Yu Dong   +7 more
doaj   +1 more source

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, Jens Kibgies, Reinhold Fiess, Wilhelm Stork   +3 more
doaj   +1 more source