Results 71 to 80 of about 5,099,511 (216)

Scaling of Three-Dimensional Computer-Generated Holograms with Layer-Based Shifted Fresnel Diffraction

Applied Sciences, 2019
Holographic three-dimensional (3D) displays can reconstruct a whole wavefront of a 3D scene and provide rich depth information for the human eyes. Computer-generated holographic techniques offer an efficient way for reconstructing holograms without ...
Hao Zhang, Liangcai Cao, Guofan Jin
doaj   +1 more source

New fully functioning digital hologram recording system and its applications [PDF]

, 2010
We propose a low-cost optical system that is able to simply generate computer-generated holograms and rainbow type and truecolor Lippmann type holograms.
JOSE JAVIER BAEZ ROJAS, MIGUEL ALCARAZ RIVERA, MARIA LUISA CRUZ LOPEZ   +2 more
core  

LigHTS: Biomimetic Hydrogel Photo‐Fabrication for Imaging‐Based Ultra‐High‐Throughput Screening

Advanced Science, EarlyView.
LigHTS removes a key bottleneck for ultra‐high‐throughput screening (UHTS) by enabling biomimetic hydrogel microenvironments to be manufactured directly in standard multiwell plates. A single, collimated UV exposure with formulation‐tuned light penetration patterns an entire plate with UHTS‐grade uniformity (<20% CV), producing structured GelMA films ...
Alessandro Enrico, Sara Rigolli, Julius Zimmermann, Melissa Pezzotti, Eloisa Torchia, Moises Di Sante, Ferdinando Auricchio, Francesco S. Pasqualini   +7 more
wiley   +1 more source

Prepolymerization Enables On‐Demand Viscosity Tuning for Xolography of Soft Hydrogels

Advanced Science, EarlyView.
A facile in situ prepolymerization strategy enables on‐demand viscosity tuning across three orders of magnitude without external thickeners, transforming low‐viscosity resins into printable formulations for Xolography. The approach suppresses sedimentation, lowers curing dose, enables high‐fidelity support‐free fabrication, and produces advanced ...
Xichuan Li, Marcus Reuter, Linguangze Zhuo, Xueheng Dai, Camille Tribout, Nathaniel Corrigan, Jin Zhang, Cyrille Boyer   +7 more
wiley   +1 more source

Mechanism of Direct Acoustic Construction and Gradient Properties Tuning

Advanced Science, EarlyView.
Directed acoustic construction enables omnidirectional gradient tuning of fingerprint‐inspired microstructures. By investigating the DAC mechanisms, diamond particles are found to enhance acoustic physical, mechanical, and chemical effects, promoting acoustic curing and broadening the range of gradient property tuning.
Dandan Wu, Lijuan Zheng, Guang Yao, Zijun Liu, Liyan Luo, Cile Liang, Chengyong Wang   +6 more
wiley   +1 more source

Modulating Phase Encoding With Amplitude Compensation for Hologram Reconstruction

IEEE Photonics Journal
In holographic three-dimensional (3D) display, phase-only spatial light modulators (SLMs) can only accept pure phase modulation signals, often leading to amplitude distortion in the reconstructed image and inaccurate object reconstruction.
Jinbin Gui, Xiandong Ma, Junchang Li, Qinghe Song   +3 more
doaj   +1 more source

Metasurface‐Based Multidimensional Light‐Field Manipulation: From Technologies to Applications

Advanced Science, EarlyView.
Multidimensional metasurfaces enable versatile manipulation of multiple optical degrees of freedom, including phase, amplitude, polarization, wavelength, and orbital angular momentum. This review summarizes their fundamental mechanisms, emerging strategies for multidimensional light‐field control, and key applications in optical computing, imaging ...
Heliang Yin, Shuo Sun, Jiahao Zhang, Jianuo Hu, Yubin Qiao, Liang Chen, Jin Li   +6 more
wiley   +1 more source

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

Measuring position and figure deviation of freeform mirrors with computer generated holograms

, 2022
Paper FT3B.2A novel interferometric metrology using a multi-zone computer generated hologram for determining position and figure deviations of two anamorphic aspherical mirrors arranged on a common substrate is ...
Zeitner, U.D., Gross, H., Beier, M., Risse, S., Gebhardt, A., Tünnermann, A., Hartung, J., Eberhardt, R., Stumpf, D.   +8 more
core   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source