Results 61 to 70 of about 5,099,511 (216)

Challenges in using GPUs for the real-time reconstruction of digital hologram images [PDF]

, 2013
This is the pre-print version of the final published paper that is available from the link below.In-line holography has recently made the transition from silver-halide based recording media, with laser reconstruction, to recording with large-area pixel ...
Nebrensky, JJ, Reid, ID, Hobson, PR
core   +1 more source

Passive Metasurface Tweezers for Multi‐Scale Orbital Transport and Trapping on Elastic Plates

Advanced Science, EarlyView.
Passive labyrinthine phase encoding converts single‐channel excitation into localized flexural‐wave vortices with programmable orbital angular momentum. The resulting vortex fields enable cross‐scale particle manipulation, including orbital transport, central confinement, and rotational actuation.
Zeyang Bi, Zhiqiang Li, Yunkang Ren, Yugui Peng, Xuefeng Zhu, Liuxian Zhao, Jun Yang, Chuanxing Bi   +7 more
wiley   +1 more source

COMPUTER-GENERATED HOLOGRAM ETCHED IN GAAS FOR OPTICAL INTERCONNECTION OF VLSI CIRCUITS [PDF]

, 1992
By integrating, on a wafer plane, GaAs semiconductor optoelectronic modulators and detectors with computer-generated holograms between then, the potential for in-plane interconnections is proposed.
CAREY, CD, LEE, SK, SELVIAH, DR, SONG, SH, MIDWINTER, JE   +4 more
core  

Compact antenna test range based on a computer-generated hologram and its use at submillimeter wavelengths

, 2007
Compact antenna test range developed at TKK Helsinki University of Technology utilizes a computer-generated amplitude hologram as the collimating element.
Ala-Laurinaho, J., Tamminen, A., Lönnqvist, Anne, J. Hakli, V. Viikari, Räisänen, A.V., J. Ala-Laurinaho, A. Lonnqvist, Koskinen, T., E. Noponen, Viikari, V., A. Tamminen, Häkli, Janne, M. Vaaja, A. V. Raisanen, Noponen, E., J. Mallat, Karttunen, A., T. Koskinen, Vaaja, M., A. Karttunen, Mallat, J.   +21 more
core   +1 more source

Polarization Holographic 4D Phenotyping Reveals Nanoplastic Induced Dysfunction in Zooplankton

Advanced Science, EarlyView.
Contaminant‐induced dysfunction in complex aquatic organisms remains difficult to resolve across scales. Polarization Holographic Imaging Microscopy (PHIM) integrates polarization‐sensitive holography with computational volumetric reconstruction for label‐free phenotyping of zooplankton in natural seawater, revealing that nanoplastic stress drives ...
Yuxing Li, Yanmin Zhu, Jingyan Chen, Rongzhou Chen, Yuen‐Wa Ho, Chutian Wang, James Kar‐Hei Fang, Kevin K. Tsia, Edmund Y. Lam   +8 more
wiley   +1 more source

Generating Multi‐Depth 3D Holograms Using a Fully Convolutional Neural Network

Advanced Science
Efficiently generating 3D holograms is one of the most challenging research topics in the field of holography. This work introduces a method for generating multi‐depth phase‐only holograms using a fully convolutional neural network (FCN).
Xingpeng Yan, Xinlei Liu, Jiaqi Li, Yanan Zhang, Hebin Chang, Tao Jing, Hairong Hu, Qiang Qu, Xi Wang, Xiaoyu Jiang   +9 more
doaj   +1 more source

An Adaptive and Secure Holographic Image Watermarking Scheme

Entropy, 2019
A novel adaptive secure holographic image watermarking method in the sharp frequency localized contourlet transform (SFLCT) domain is presented. Based upon the sine logistic modulation map and the logistic map, we develop an encrypted binary computer ...
Chuying Yu, Xiaowei Li, Xinan Chen, Jianzhong Li   +3 more
doaj   +1 more source

Single‐Pulse Femtosecond Laser 3D Multi‐Foci Light‐Field Engineering via Multi‐Layer Noise Threshold Filtering

Advanced Science, EarlyView.
This study presents a single‐pulse femtosecond laser strategy for three‐dimensional multi‐foci light‐field shaping and high‐throughput micro/nano manufacturing. The multi‐layer noise threshold filtering algorithm improves focal quality, while the multi‐layer over‐sampling algorithm increases focal density.
Shouyu Wu, Ruiyang Wang, Lan Jiang, Mengyao Tian, Yongjiu Yuan, Junrui Wu, Liang Zhao, Ruochen Zhang, Ziqian Ning, Xin Li   +9 more
wiley   +1 more source

Two-pixel computer-generated hologram with a zero-twist nematic liquid-crystal spatial light modulator

, 2000
We present a method of producing a computer-generated hologram by use of a zero-twist linear nematic liquid-crystal spatial light modulator. A 2×1 macro pixel method is used; one pixel represents the real data, and one, the imaginary.
Chris Chatwin (4460602), Phil Birch (4461511), Rupert Young (4460611), David Budgett (16045730), Birch, PM, Budgett, DM, Chatwin, CR, Young, RCD   +7 more
core   +2 more sources

Non-convex optimization for inverse problem solving in computer-generated holography

Light: Science & Applications
Computer-generated holography is a promising technique that modulates user-defined wavefronts with digital holograms. Computing appropriate holograms with faithful reconstructions is not only a problem closely related to the fundamental basis of ...
Xiaomeng Sui, Zehao He, Daping Chu, Liangcai Cao   +3 more
doaj   +1 more source