Results 101 to 110 of about 556,769 (269)

Digitized Phase‐Change Material Heterostack for Transmissive Diffractive Optical Neural Network

Advanced Photonics Research, EarlyView.
A phase‐change‐material‐based digitized heterostack is experimentally demonstrated and theoretically analyzed for future energy‐efficient, fast reconfigured, and compact transmissive diffractive optical neural networks. All‐optical and fully reconfigurable transmissive diffractive optical neural network (DONN) architectures emerge as high‐throughput ...
Ruiyang Chen, Jichao Fan, Cunxi Yu, Weilu Gao   +3 more
wiley   +1 more source

Are physiological oscillations physiological?

The Journal of Physiology, EarlyView., 2023
Abstract figure legend Mechanisms and functions of physiological oscillations. Abstract Despite widespread and striking examples of physiological oscillations, their functional role is often unclear. Even glycolysis, the paradigm example of oscillatory biochemistry, has seen questions about its oscillatory function.
Lingyun (Ivy) Xiong, Alan Garfinkel
wiley   +1 more source

Dynamic Ultrasound Projector Controlled by Light

Advanced Science, 2022
Dynamic acoustic wavefront control is essential for many acoustic applications, including biomedical imaging and particle manipulation. Conventional methods are either static or in the case of phased transducer arrays are limited to a few elements and ...
Zhichao Ma, Hyungmok Joh, Donglei Emma Fan, Peer Fischer   +3 more
doaj   +1 more source

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

Advanced Photonics Research, EarlyView.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu, Yihang Di, Mengmeng Zhang, Zhenbo Ren, Jianglei Di, Jianlin Zhao   +5 more
wiley   +1 more source

Precision Construction of Chiral Optical Fields with Nine Controllable Degrees of Freedom

Advanced Photonics Research, EarlyView.
Chiral optical fields (COFs) offer multiple controllable degrees of freedom (DOFs), enabling applications in optical tweezers, manufacturing, and encryption. However, achieving precise sidelobe control remains a challenge. This work introduces a modular multilayer annular phase plate to fine‐tune COFs by manipulating nine DOFs.
Duo Deng, Xing Liu, Zixin Xu, Zhenjun Yang, Yan Li   +4 more
wiley   +1 more source

Multi-focus manipulation system based on separable natural evolution strategy aberration self-calibration

Applied Physics Express
Wavefront shaping using digital micromirror devices (DMDs) allows inertia-free focus manipulation with numerous modulation modes and high refresh rates. However, the aberration caused by the curvature of DMDs affects the focusing performance.
Linxian Liu, Jiahao Liu, Chunxu Ding, Jiamiao Yang, Jia Gao, Yuan Qu, Qiaozhi He, Rongjun Shao   +7 more
doaj   +1 more source

Wavefront manipulation based of the excitation of bound states in dielectric photonic crystals and bilayer metasurfaces [PDF]

arXiv, 2019
We present the study of bound surface modes sustained at the termination of truncated bulk dielectric photonic crystals and isolated metasurfaces of dielectric meta-atoms. We discuss the origins of bound modes in the two systems and their relation.
arxiv  

Transmissive Metagrating for Arbitrary Wavefront Shaping Over the Full Visible Spectrum [PDF]

arXiv, 2020
Metagratings have been shown to form an agile and efficient platform for extreme wavefront manipulation, going beyond the limitations of gradient metasurfaces. Previous approaches for transmissive metagratings have resorted on compound asymmetric inclusions to achieve single-channel near-perfect diffraction.
arxiv  

Three‐Channel Wavefront Shaping Using Non‐Interleaved Spin‐Multiplexed Plasmonic Metasurfaces

Advanced Science, EarlyView.
A versatile non‐interleaved plasmonic metasurface platform has been developed using quarter‐wave plate meta‐atoms for independent and simultaneous phase modulation of both co‐ and cross‐polarized circularly polarized waves. Three proof‐of‐concept designs have been validated in the near‐infrared: a beam deflector with three distinct reflection angles, a
Xingling Pan, Yadong Deng, Ziru Cai, Zhiming Chen, Yingtao Ding, Ziwei Zheng, Fei Ding   +6 more
wiley   +1 more source

High‐Fidelity Computational Microscopy via Feature‐Domain Phase Retrieval

Advanced Science, EarlyView.
An innovative phase retrieval framework, termed FD‐PR, is uniquely established in the image's feature domain through the feature‐extracted, physical‐driven regression with interfaces for combining physics and image processing constraints. FD‐PR takes advantage of invariance components of an image against presences of model mismatch and uncertainty ...
Shuhe Zhang, An Pan, Hongbo Sun, Yidong Tan, Liangcai Cao   +4 more
wiley   +1 more source