Results 21 to 30 of about 4,717,735 (155)

Quantitative label-free cell imaging by means of digital holographic miscroscopy: a roadmap for a complete characterization of biological samples [PDF]

, 2011
The research activity, performed at the institute for Microelectronic and Microsystems, has been devoted to the study and the development of non-destructive optical techniques for morphological analysis of biological samples.
Di Caprio, Giuseppe
core   +1 more source

Deep‐Learning‐Based Denoising for Improved Phase Precision in Electron Holography of Electromagnetic Fields in Nanoscale Materials

Advanced Science, EarlyView.
Low‐dose electron holography is limited by shot noise, which buries weak phase signals. HoloDenoiser, a physics‐informed network that works simultaneously in the spatial and frequency domains, locates and protects the holographic sideband while suppressing noise in the hologram.
Ye Luo, Luyang Wang, Zhiling Yu, Xiaowen Chen, Xiaoyu Wang, Ya‐Hui Jia, Thibaud Denneulin, Yu Han, Rafal E. Dunin‐Borkowski, Fengshan Zheng, Qi Liu   +10 more
wiley   +1 more source

Electrically Tunable Graphene‐Metal Hybrid Metasurfaces for High‐Efficiency, Broadband Mid‐Infrared Transmission Modulation

Advanced Science, EarlyView.
A graphene‐metal hybrid transmissive metasurface enables electrically tunable mid‐infrared transmission modulation through ionic gel top gating. By combining graphene with a metallic slit metasurface, high modulation efficiency and broadband operation are achieved simultaneously, demonstrating efficient electrical control of mid‐infrared transmission ...
Heonhak Ha, Jinseok Kong, Junhyung Kim, Jiwon Kang, Min Seok Jang   +4 more
wiley   +1 more source

Polarizing holographic beam splitter on photoresist

, 1995
peer reviewedDesigning of polarizing holographic optical ...
Habraken, Serge, Michaux, Olivier, Lion, Yves, Renotte, Yvon   +3 more
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

A surface velocimeter based on a holographic optical element and semiconductor components

, 1996
A new implementation of a laser time-of-flight velocimeter is described. The system is based on a novel combination of a holographic optical element, a semiconductor laser and a double-semiconductor detector.
Hanson, Steen Grüner, Lindvold, L., Lading, L.   +2 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

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

Multitask Diffractive Deep Neural Networks Enabled by Joint Distance-Frequency Encoding. [PDF]

Nanophotonics
A joint distance–frequency encoding strategy enables a single passive diffractive neural network to switch among four computational tasks. By combining mechanically tunable layer spacing with a dual‐frequency phase‐independent metasurface, the same hardware performs orbital angular momentum classification, direction recognition, logic operations, and ...
Jiang Z, Fei Z, Jiang W, Ding G, Chen K, Feng Y.   +5 more
europepmc   +2 more sources

Recent Advances in High‐Entropy Nanozymes: From Fabrication to Applications

Advanced Science, EarlyView.
To highlight key achievements and clarify the current landscape of high‐entropy nanozymes (HEAzymes), this review summarizes state‐of‐the‐art developments ranging from thermodynamically and kinetically controlled synthetic strategies; enzyme‐like catalytic types, catalytic characteristics, and underlying mechanisms; to their antioxidative, therapeutic,
Yongjian Ai, Weibo Zhang, Pengjie Wang, Wentao Xu, Huiyuan Guo, Hong‐bin Sun, Meng‐Qi He, Fazheng Ren, Qionglin Liang   +8 more
wiley   +1 more source