Results 91 to 100 of about 80,548 (342)

Enhanced Spectral Tunability by Sub‐10 nm Nanogaps in Graphene‐Metal Hybrid Metasurfaces

Advanced Science, EarlyView.
A tunable mid‐infrared metasurface integrating graphene and metal antenna arrays with sub‐10 nm nanogaps is presented, overcoming the ≈20 nm limit of conventional fabrication. The enhanced spectral tuning range and modulation depth are enabled by combining electron‐beam lithography, thin metal deposition, and directional ion milling to precisely define
Fei Han, Zaoyang Lin, Kacper Pilarczyk, Hongwei Tang, Guy A. E. Vandenbosch, Joris Van de Vondel, Xuezhi Zheng, Niels Verellen, Ewald Janssens   +8 more
wiley   +1 more source

Metasurface‐Driven Adaptive Structured Light: Achieving Integrated Real‐Time 3D Reconstruction and Forward Ranging in Multi‐Scene

Advanced Science, EarlyView.
A metasurface‐based structured light system for real‐time three‐dimensional reconstruction and forward ranging is demonstrated. By simultaneously emitting grazing and normal emission beams, hardware limitations are overcome. Combining adaptive closed‐line light patterns with a point cloud enhancement algorithm enables 30 frames per second imaging in ...
Zhengren Zhang, Mengran Yang, Anjun Qu, Zile Li, Shaohua Yu, Guoxing Zheng   +5 more
wiley   +1 more source

Helical Photonic Metamaterials for Encrypted Chiral Holograms

Advanced Science, EarlyView.
This article explores the untapped potential of 3D‐printed helical structures as chiral metamaterials and metaholograms by uncovering how specific geometric parameters govern their chiroptical behavior. Combining terahertz experiments and simulations, it reveals how tunable, stretchable helices enable broadband ellipticity and encrypted QR codes ...
Wonjin Choi, Widianto P. Moestopo, Songyun Gu, Taeil Lee, Jae‐Hyuck Yoo, Xiaoxing Xia, Michael R. Armstrong   +6 more
wiley   +1 more source

Metamaterial‐Enhanced Solar‐Driven Processes for Energy Conversion and Water Treatment

Advanced Science, EarlyView.
This review explores how metamaterials revolutionize solar‐driven process for energy conversion and water treatment through enhanced light absorption, LSPR, charge separation, and bandgap engineering. By leveraging unique nanostructures and AI‐guided design, these engineered materials drive CO₂ reduction, water splitting, pollutant degradation, and ...
Xuechen Jing, Zhehao Sun, Hang Yin, Kaili Liu, Yi‐Lun Chen, Shuwen Cheng, Zongyou Yin   +6 more
wiley   +1 more source

Large Depth‐of‐Field, Large Eyebox, and Wide Field‐of‐View Freeform‐Holographic Augmented Reality Near‐Eye Display

Advanced Science, EarlyView.
This study proposes an augmented reality (AR) near‐eye display system that simultaneously achieves a large depth‐of‐field (DOF) from 0.25 to 10 m, a wide 50° field‐of‐view (FOV), and a 10 mm × 10 mm viewing eyebox, while maintaining high display performance, good optical see‐through viewing capability, and a compact system form factor.
Yongdong Wang, Tong Yang, Xin Lyu, Dewen Cheng, Yongtian Wang   +4 more
wiley   +1 more source

Comparative analysis of the refractive and functional results of toric intraocular lens with wavefront-shaping mechanism implantation during the surgical treatment of cataracts in patients after penetrating keratoplasty

Офтальмохирургия
Relevance. This study presents a comparative analysis of the effectiveness of toric intraocular lens (IOL) with a wavefront shaping mechanism implantation in cataract surgical treatment in patients after penetrating keratoplasty (PKP). Purpose.
D.A. Khvan, G.A. Fedyashev
doaj   +1 more source

Meta‐Dispersive 3D Chromatic Confocal Measurement

Advanced Science, EarlyView.
A dispersive metalens (DML) combined with the chromatic confocal method is achieved for high‐precision 3D measurement in this study. This approach enables both high axial and lateral resolutions in compact optics. The development offers a promising route toward precise, miniaturized depth sensing for future applications in microstructure inspection and
Jiajun Wu, Jin Yao, An Ren, Zhizheng Ju, Rong Lin, Zhihui Wang, Wule Zhu, Bingfeng Ju, Din Ping Tsai   +8 more
wiley   +1 more source

High‐Speed Design of Multiplexed Meta‐Optics Enabled by Physics‐Driven Self‐Supervised Network

Advanced Science, EarlyView.
A physics‐driven self‐supervised network (PDSS‐Net) is proposed for high‐speed, iteration‐free design of multiplexed meta‐optics. By learning a direct mapping from holographic targets to all meta‐atom structures, PDSS‐Net achieves a 1000× speedup over traditional optimization methods in designing 2K RGB meta‐holograms.
Yuqing He, Sheng Ye, Yue Han, Mingna Xun, Qiang Li, Ruiqi Wang, Qihuang Gong, Yan Li   +7 more
wiley   +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

Wavefront analysis and modulation transfer function of three multifocal intraocular lenses

Indian Journal of Ophthalmology, 2010
Purpose: To evaluate wavefront performance and modulation transfer function (MTF) in the human eye after the implantation of diffractive or refractive multifocal intraocular lenses (IOLs). Materials and Methods: This was a prospective, interventional,
Santhiago Marcony, Netto Marcelo, Barreto Jackson, Gomes Beatriz, Schaefer Arthur, Kara-Junior Newton   +5 more
doaj