Results 161 to 170 of about 1,834,878 (292)

Significance-Aware Federated Reinforcement Learning for AoI Optimization of Vehicular Sensing in UAV-Assisted Edge Networks. [PDF]

Sensors (Basel)
Wang X, Bai S, Zhang Y, Gursoy MC.
europepmc   +1 more source

Visible‐Blind Near‐Infrared Organic Vision Sensors for Imaging in Adverse Environmental Conditions

Advanced Optical Materials, EarlyView.
This work presents high‐performance visible‐blind NIR OPDs enabled by a multilayer optical modulation layer. The devices achieve strong visible‐light suppression and enhanced NIR sensitivity, enabling robust imaging in foggy or low‐light environments.
Baozhong Deng, Kean Lu, Zhouyi Lu, Yi Li, Gaoyu Dai, Luqiao Yin, Zihan Wang, Bruno Grandidier, Tao Xu, Furong Zhu   +9 more
wiley   +1 more source

Ultra-Wideband Optically Transparent Absorbing Metasurface Based on Multilayer ITO Films. [PDF]

Nanomaterials (Basel)
Lu G, Liu M, Wang B.
europepmc   +1 more source

Aberrations‐Corrected Ratiometric Parameters and PLQYs for Upconversion Thermometry in Hexagonal NaYF4:Yb3+,Er3+ and NaYF4:Yb3+,Tm3+ in Micro and Nanoscale Phosphors Using Novel Integrating Sphere Setup

Advanced Optical Materials, EarlyView.
Each optical system introduces aberrations in the reading of photoluminescence, which makes the signal dependant on the lab equipment. Here, a calibrated system is used to obtain the PLQYs and ratiometric parameters of popular upconverters to be used in thermometry.
Adilet Zhakeyev, Feng Li, Daniel Biner, Karl W. Krämer, Guanying Chen, Jose Marques‐Hueso   +5 more
wiley   +1 more source

Estimating Mutual Information and Pearson Correlation on Neural Evoked Responses. [PDF]

Neuroinformatics
Hukari A, Cotroneo SF, Salmelin R.
europepmc   +1 more source

Spectral Reconstruction Using Broadband Inkjet‐Printed Optical Filters

Advanced Optical Materials, EarlyView.
A proof‐of‐concept for a reconstructive spectrometer based on inkjet‐printed interferometric optical filters is demonstrated. Through adaptive encoding and robust post‐processing algorithms, spectral reconstruction is achieved over a 400 nm visible bandwidth at a fraction of the cost and complexity of typical encoders while maintaining high optical ...
Leonardo Baini, Qihao Jin, Qiaoshuang Zhang, Guillaume Gomard, Uli Lemmer, Paolo Bartolini, Andrea Taschin, Diederik S. Wiersma, Renato Torre, Alice Boschetti   +9 more
wiley   +1 more source

Jamming Recognition Based on Adaptive Feature-Focusing Convolutional Neural Network for Agile Cognitive Radar. [PDF]

Sensors (Basel)
Liu J, Ma J, Shi L, Lin Z, Kong Y, Chen J.   +5 more
europepmc   +1 more source

Breaking Optical Transparency and Electromagnetic Performance Trade‐Offs for Transparent Reflective Metasurfaces

Advanced Optical Materials, EarlyView.
A theory‐guided magnetoelectric metasurface design breaks the conventional optical transparency and electromagnetic performance trade‐offs. By preserving the electric and magnetic current paths required for efficient reflection through fine‐metal‐line structure, the developed transparent reflective metasurface achieves high optical transparency without
Mina Feizi, Shu‐Lin Chen, Geng‐Bo Wu, Li‐Zhao Song, Pei‐Yuan Qin, Y. Jay Guo   +5 more
wiley   +1 more source

A Super Memory Processing Unit Based on 3D Stacking and Hybrid Bonding for High-Efficiency AI Computing. [PDF]

Micromachines (Basel)
Zhao R, Hu Y, Chen J.
europepmc   +1 more source

Massively Degenerate Coherent Perfect Absorption in Gradient‐Index Fibers

Advanced Optical Materials, EarlyView.
A coherent perfect absorber (CPA) normally operates for only one or very few spatial modes. The CPA proposed here uses a gradient‐index (GRIN) fiber to absorb hundreds of spatial modes at once, its self‐imaging property replacing the bulky free‐space degenerate cavity of earlier designs. An analytic criterion sets how much modal degeneracy is required,
Helmut Hörner, Şahin K. Özdemir, Stefan Rotter   +2 more
wiley   +1 more source