Results 151 to 160 of about 154,766 (375)

Water‐Wave Pancharatnam‐Berry Phase Induced by 4D Spin‐Orbit State Evolution

Advanced Science, EarlyView.
The first observation of the Pancharatnam‐Berry (PB) phase in water waves is reported, revealing its extraordinary properties including unbounded phase values, spin‐momentum‐locked unidirectional channels, and a Poincaré hypersphere representation. These findings demonstrate the universality of the PB phase across different wave systems and in higher ...
Wanyue Xiao, Shiqi Jia, Tong Fu, Shubo Wang   +3 more
wiley   +1 more source

Non‐Uniform Space‐Time‐Coding Modulation for Low‐Complexity Diagnostics of Reconfigurable Intelligent Surfaces

Advanced Electronic Materials, EarlyView.
A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen, Lei Zhang, Yi Ning Zheng, Bing Bing Zhu, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Vincenzo Galdi, Tie Jun Cui   +8 more
wiley   +1 more source

Comments on "Inherent bias in wavefront curvature ranging" [PDF]

, 1982
Joseph C. Hassab, B. Guimond, S. Nardone
openalex   +1 more source

46‐Channel Image Encryption Based on Optically Controlled Metasurfaces

Advanced Electronic Materials, EarlyView.
A metasurface‐based optically‐controlled image encryption device is proposed, enabling 46 encryption channels and dynamic capabilities. The terahertz isotropic phase metasurface switches between encryption channels in response to the structured infrared light incident on its surface.
Yufei Liu, Guibin Li, Zehao He, Xinke Wang, Yan Zhang   +4 more
wiley   +1 more source

Optical Bench Evaluation of the Latest Refractive Enhanced Depth of Focus Intraocular Lens

Clinical Ophthalmology
Ruediger Schmid,1 Andreas F Borkenstein2 1accuratis, Practice for Refractive Eye Surgery, Ulm, 89073, Germany; 2Borkenstein & Borkenstein, Private Practice at Privatklinik der Kreuzschwestern, Graz, 8010, AustriaCorrespondence: Ruediger Schmid, accuratis,
Schmid R, Borkenstein AF
doaj  

Hyperbolic-umbilic diffraction catastrophes and the tracing of local principal curvatures of wavefronts [PDF]

, 1986
Philip L. Marston
openalex   +1 more source

Versatile Standing Wave Generation Between Arbitrarily Oriented Surfaces Using Acoustic Metasurface Deflectors and Retroreflectors

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A novel method for generating versatile standing wave fields using an acoustic metasurface deflector and retroreflector is introduced. By overcoming traditional constraints of parallel surfaces, the approach enables customizable wave patterns and enhances applications in particle manipulation.
Chadi Ellouzi, Farhood Aghdasi, Ali Zabihi, Amir K. Miri, Chen Shen   +4 more
wiley   +1 more source

Visualization of High Frequency Ultrasonic Wavefronts by Holographic Interferometry [PDF]

, 1981
Masahito Ueda, Yoshihiro Oshida, Koichi Iwata, Ryo Nagata   +3 more
openalex   +1 more source

A Periodic Error Correction Method for Terahertz Coded‐Aperture Imaging

Advanced Intelligent Systems, EarlyView.
A physics‐constrained unsupervised learning framework with periodic error correction is proposed for terahertz coded‐aperture imaging. The method improves reconstruction robustness against noise and model mismatch, while reducing reliance on large‐scale labeled data.
Hongxu Wu, Jiangtao Ji, Chenxi Liu, Fei Yang, Shuang Peng, Haiying Lu, Junwei Wu, Xiaojian Fu, Huifeng Ma   +8 more
wiley   +1 more source

Ultrasonic imaging system using orthogonal function wavefronts [PDF]

, 1980
Takuso Sato, Osamu Ikeda, Tomoji Azuma
openalex   +1 more source