Results 111 to 120 of about 556,769 (269)

Broadband, Wide‐Angle, and Versatile Metasurface Illusions with Inverse Synthetic Aperture Radar Imaging

open access: yesAdvanced Science, EarlyView.
“Illusion” is a captivating topic throughout human civilization. This research proposes an advanced multi‐layer metasurface illusion strategy utilizing a technique known as “inverse synthetic aperture radar (ISAR)” imaging, enabling the creation of illusions over broadband and wide‐angle.
Haoran Li   +12 more
wiley   +1 more source

Natural Crystal Structure for Generating Raman‐Like Orbital Angular Momentum States

open access: yesAdvanced Science, EarlyView.
This work proposes a strategy for symmetry breaking of the degenerate OAM states relying on the natural anisotropy of crystal gain, to select the handedness of the spatial spiral phase front and further tunable Raman‐like OAM states by thermal‐driven, which clarifies the contribution of intrinsic crystal property to the OAM states and opens a new route
Tianxiang Meng   +4 more
wiley   +1 more source

Measuring the phase velocity of twisted wavefronts [PDF]

open access: yesarXiv, 2018
Traditionally one defines the speed of a wave as a property of the medium. Recent studies in photonics have challenged this idea, indicating that spatial shaping of the optical wavefront has can alter the arrival time of single photons when compared to an entangled reference photon.
arxiv  

Multi‐Dimensional Multiplexed Metasurface for Multifunctional Near‐Field Modulation by Physics‐Driven Intelligent Design

open access: yesAdvanced Science, EarlyView.
The expansive design space of advanced metasurfaces, particularly those with multiple degrees of freedom (MDOF), renders traditional design methods less effective. A physics‐driven intelligent design is proposed for MDOF metasurfaces, which integrates physical knowledge into neural networks, enhancing interpretability and computational efficiency. This
Jian Lin Su   +10 more
wiley   +1 more source

Advanced Contactless Bioassembly Approaches: Leveraging Sound, Optical, and Magnetic Fields

open access: yesAdvanced NanoBiomed Research, EarlyView.
This review explores innovative contactless bioassembly techniques driven by sound, light, and magnetic fields, which enable the precise organization of cells, biomaterials, and bioactive substances into complex 3D structures. These technologies, crucial for in vitro modeling and regenerative medicine, are examined in detail, highlighting their ...
Micaela Natta   +4 more
wiley   +1 more source

Free‐space Optical Computing Systems

open access: yesAnnalen der Physik, EarlyView.
Manipulation and propagation of optical wavefronts in free space enables new intelligent computing hardware. Two types of optical computing systems, matrix and vector multiplication systems and diffractive optical neural network systems, are reviewed from material, device, and system aspects.
Ruiyang Chen, Weilu Gao
wiley   +1 more source

Singular Electromagnetics: From Phase Singularities to Optical Skyrmions and Beyond

open access: yesAdvanced Physics Research, EarlyView.
Singular electromagnetics/optics studies multidimensional topological defects of electromagnetic fields (also known as optical singularities), including phase and polarization singularities, 3D singularities (e.g., optical skyrmions, merons, hopfions, knots, links, and Möbius strips), and even higher‐dimensional singularities.
Jie Yang   +3 more
wiley   +1 more source

Broadband spin-unlocked metasurfaces for bifunctional wavefront manipulations [PDF]

open access: bronze, 2022
Shaohua Dong   +7 more
openalex   +1 more source

Stimuli‐Configuring Anisotropic Soft Architectures towards Dynamic Manipulable Photonics

open access: yesAdvanced Physics Research, EarlyView.
This review covers stimuli‐responsive liquid crystal micro/nano‐structures, focusing on their properties, advancements, and applications in photonics. It discusses electric, light, temperature, and mechanical stimuli, highlighting innovative applications in optics, sensing, information processing and so on so forth, emphasizing liquid crystal ...
Xiaoqian Wang, Zhi‐Gang Zheng
wiley   +1 more source

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