Results 41 to 50 of about 17,183 (278)

Digital Holographic Printing Methods for 3D Visualization of Cultural Heritage Artifacts

open access: yesDigital Presentation and Preservation of Cultural and Scientific Heritage, 2014
Holography enables capture and reconstruction of the optical field scattered from three-dimensional (3D) objects. The hologram encodes both amplitude and phase of the field under coherent illumination, whereas photography records only the amplitude by ...
Hoonjong Kang   +9 more
doaj   +1 more source

Crosstalk Suppressed 3D Light Field Display Based on an Optimized Holographic Function Screen

open access: yesMicromachines, 2022
A holographic function screen (HFS) can recompose the wavefront and re-modulate the light-field distribution from a three-dimensional (3D) light field display (LFD) system. However, the spread function of existing HFSs does not particularly suit integral
Hui Zhang   +6 more
doaj   +1 more source

Holographic Resonant Laser Printing of metasurfaces using plasmonic template [PDF]

open access: yes, 2018
Laser printing with a spatial light modulator (SLM) has several advantages over conventional raster-writing and dot-matrix display (DMD) writing: multiple pixel exposure, high power endurance and existing software for computer generated holograms (CGH ...
Carstensen, Marcus S.   +5 more
core   +3 more sources

Large‐Scale Huygens’ Metasurfaces for Holographic 3D Near‐Eye Displays [PDF]

open access: yesLaser & Photonics Reviews, 2021
AbstractNovel display technologies aim at providing users with increasingly immersive experiences. It is a long‐sought dream to generate three‐dimensional (3D) scenes with high resolution and continuous depth, which can be overlaid with the real world.
Weitao Song   +8 more
openaire   +3 more sources

Enlargements of Viewing Zone and Screen Size of Holographic Displays Using MEMS SLM Combined with Scanning Systems

open access: yesApplied Sciences, 2022
The problems of conventional holographic display techniques, which are the requirements of a sub-micron pixel pitch and ultra-high resolution for spatial light modulators (SLMs) to enlarge the viewing zone and screen size, can be addressed using ...
Yasuhiro Takaki
doaj   +1 more source

Sperm trajectories form chiral ribbons. [PDF]

open access: yes, 2013
We report the discovery of an entirely new three-dimensional (3D) swimming pattern observed in human and horse sperms. This motion is in the form of 'chiral ribbons', where the planar swing of the sperm head occurs on an osculating plane creating in some
Choi, Inkyum   +5 more
core   +1 more source

Recent Progress in True 3D Display Technologies Based on Liquid Crystal Devices

open access: yesCrystals, 2023
In recent years, the emergence of virtual reality (VR) and augmented reality (AR) has revolutionized the way we interact with the world, leading to significant advancements in 3D display technology.
Shuxin Liu, Yan Li, Yikai Su
doaj   +1 more source

Laser Doppler holographic microscopy in transmission: application to fish embryo imaging [PDF]

open access: yes, 2014
We have extended Laser Doppler holographic microscopy to transmission geometry. The technique is validated with living fish embryos imaged by a modified upright bio-microcope.
Alexandre, Daniel   +2 more
core   +3 more sources

Holographic Three-Dimensional Virtual Reality and Augmented Reality Display Based on 4K-Spatial Light Modulators

open access: yesApplied Sciences, 2019
In this paper, we propose a holographic three-dimensional (3D) head-mounted display based on 4K-spatial light modulators (SLMs). This work is to overcome the limitation of stereoscopic 3D virtual reality and augmented reality head-mounted display.
Hongyue Gao   +7 more
doaj   +1 more source

Real-time optical micro-manipulation using optimized holograms generated on the GPU

open access: yes, 2010
Holographic optical tweezers allow the three dimensional, dynamic, multipoint manipulation of micron sized dielectric objects. Exploiting the massive parallel architecture of modern GPUs we can generate highly optimized holograms at video frame rate ...
Ahrenberg   +22 more
core   +1 more source

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