Results 71 to 80 of about 6,059 (275)

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

Generalised optical differentiation wavefront sensor: a sensitive high dynamic range wavefront sensor

Optics Express, 2016
Current wavefront sensors for high resolution imaging have either a large dynamic range or a high sensitivity. A new kind of wavefront sensor is developed which can have both: the Generalised Optical Differentiation wavefront sensor. This new wavefront sensor is based on the principles of optical differentiation by amplitude filters.
openaire   +4 more sources

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

Plenoptic wavefront sensor with scattering pupil

Optics Express, 2014
We consider a wavefront sensor combining scattering pupil with a plenoptic imager. Such a sensor utilizes the same reconstruction principle as the Hartmann-Shack sensor, however it is free from the ambiguity of the spot location caused by the periodic structure of the sensor matrix, and allows for wider range of measured aberrations.
Gleb Vdovin, Mikhail Loktev, Oleg Soloviev   +2 more
openaire   +3 more sources

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

An Efficient Pipeline Wavefront Phase Recovery for the CAFADIS Camera for Extremely Large Telescopes

Sensors, 2009
In this paper we show a fast, specialized hardware implementation of the wavefront phase recovery algorithm using the CAFADIS camera. The CAFADIS camera is a new plenoptic sensor patented by the Universidad de La Laguna (Canary Islands, Spain ...
Eduardo Magdaleno, Manuel Rodríguez, José Manuel Rodríguez-Ramos   +2 more
doaj   +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