Results 91 to 100 of about 25,634 (258)

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Robust multiresonant nonlocal metasurfaces by rational design

Nanophotonics
Dielectric metasurfaces supporting optical resonances have become a promising platform for quantum and nonlinear optics. However, resonant metasurfaces remain limited in their capacity to independently control the behavior of many distinct resonances ...
Malek Stephanie C., Doiron Chloe F., Brener Igal, Cerjan Alexander   +3 more
doaj   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Review for wireless communication technology based on digital encoding metasurfaces

Opto-Electronic Advances
Metasurfaces offer exceptional capabilities for controlling electromagnetic waves, enabling the realization of unique electromagnetic properties. As communication technology continues to evolve, metasurfaces present promising applications in wireless ...
Haojie Zhan, Manna Gu, Ying Tian, Huizhen Feng, Mingmin Zhu, Haomiao Zhou, Yongxing Jin, Ying Tang, Chenxia Li, Bo Fang, Zhi Hong, Xufeng Jing, Le Wang   +12 more
doaj   +1 more source

Machine learning for metasurfaces broadband absorber design

Metasurfaces have been emerging increasingly due to their realization of various technologies in meeting the design of multi-functional, compact, highly efficient, tunable, and low-cost designs owing to the fact that they can manipulate electromagnetic ...
Ijaz, Sumbel, Mehmood, Muhammad Qasim, Abbasi, Qammer H., Zulfiqar, Anum, Zubair, Muhammad, Rehman, Bacha   +5 more
core   +1 more source

Understanding and Designing Phase Change Materials: Insights From Atom Probe Tomography

Advanced Science, EarlyView.
Atom probe tomography can distinguish metallic, covalent, and metavalent bonds based upon their bond rupture; in particular, the probability to form more than one ion (PME) in laser‐assisted field evaporation. These findings open new avenues in understanding and designing phase change materials (PCMs) since they allow quantification of bonds in solids ...
Jan Köttgen, Nils von den Driesch, Alexander Pawlis, Matthias Wuttig   +3 more
wiley   +1 more source

Bottom–Up Metasurfaces for Biotechnological Applications

Advanced Science
Metasurfaces are the 2D counterparts of metamaterials, and their development is accelerating rapidly in the past years. This progress enables the creation of devices capable of uniquely manipulating light, with applications ranging from optical ...
Francesca Petronella, Federica Zaccagnini, Maria Laura Sforza, Vincenzo De Mei, Luciano De Sio   +4 more
doaj   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

Stable and switchable $$\textrm{VO}_2$$ -based metasurfaces in the near-infrared region

Scientific Reports
Metasurfaces, with their remarkable ability to control electromagnetic beams, provide great prospects for optical systems. Recently, active metasurfaces have gained more attention compared to passive ones due to their tunable functionality. However, most
Elaheh Bazouband, Abdolnasser Zakery, Mahdieh Hashemi   +2 more
doaj   +1 more source

Generation and Enhancement of Persistent Nanoscale Magnetization in All‐Dielectric Metasurfaces by Optically Injected and Localized Free Carriers

Advanced Science, EarlyView.
Infrared metasurface‐guided waves (IR‐MGW) scattered by a time interface (TI) induced by rapid, localized free‐carrier generation can be efficiently rectified to generate strong, persistent magnetic fields. We develop a rigorous, theoretical model to study a time‐varying, dispersive medium and uncover the redistribution of the initial energy of the IR ...
Shivaksh Rawat, Samyobrata Mukherjee, Gennady Shvets   +2 more
wiley   +1 more source