Abstract The all‐optical diffractive deep neural networks (D 2 NNs) framework as a hardware platform is demonstrated to implement various advanced functional meta‐devices with high parallelism and processing speed. However, the design methodology merging trainable polarization modulation neurons into D NNs, which potentially possess higher integration more task‐loading capacity, not yet fully explored. Here, matrix (M‐D are proposed deploy polarization‐sensitive Jones metasurfaces...

Exploring high-safety but convenient encryption and decryption technologies to combat threats of information leakage is urgently needed remains a great challenge. Here, synergistically time- temperature-resolved coding/decoding solution based on functional photonic inks demonstrated. Encrypted messages can be stored into multiple channels with dynamic-color patterns, only enabled at appointed temperature time points. Notably, the ink easily processed quick-response codes multipixel plates....

Characterization of electromagnetic wave polarization states is critical in various applications materials, biomedical, and imaging. The emergence metasurfaces opens up the possibility implementing highly integrated full-Stokes imagers. Despite rapid development, prevailing schemes on metasurface-based imagers require interleaved or cascaded designs, inevitably resulting performance deterioration, bulky size, complicating imaging procedure due to misalignment. To overcome these challenges, a...

A novel ordered gel composed of polyaniline and sodium alginate demonstrates the capability to precisely tune on/off switching electromagnetic interference shielding effectiveness through solvent responsiveness.

Abstract Oriented aerogels, emerging as a new generation of lightweight electromagnetic interference (EMI) materials, often face complex synthesis processes. While creating an orderly oriented microstructure for EMI aerogels through ambient pressure drying (APD) shows promise, it remains significant challenge. Here, inspired by the directional grown structure plant, strategy that employs rapid precursor orientation followed slow cross‐linking to achieve APD is proposed. This approach...

Composite solid-state electrolytes (CSEs) using Li1+xAlxTi2-x(PO4)3 (LATP) as active fillers offer promising prospects for large-scale lithium metal batteries (LMBs) applications due to their high environmental stability, cost-effectiveness, and improved safety. However, the challenges persist owing interfacial resistance with electrodes instability metal. Herein, self-assembly nanofiber/polymers/LATP composite quasi-solid (SL-CQSEs) are reported through in situ polymerization of precursor...

Highly adaptable upcycling of waste polyolefins was demonstrated to obtain high-value nitro-containing polycarboxylic acids in high carbon yields.

Abstract Natural seawater electrolysis faces significant challenges due to the complex environment, particularly formation of insoluble deposits on cathode that block active sites. Here, an intelligent phthalocyanine‐armorized Ru aerogel electrocatalyst is introduced exhibits exceptional hydrogen evolution reaction (HER) performance and outstanding stability at industrial current densities in natural seawater. The armor promotes dissociation water self‐captures protons build acidic...

Abstract Metasurface‐based vectorial holography manifests itself as an advanced platform for large‐capacity information storage, holographic display, and cryptography. However, a convenient effective reconfigurable hologram generation mechanism still remains challenge. Here, rotation‐driven scheme is developed via dual‐layer hybrid metasurface device, in which radiation‐type birefringent metasurfaces are cascaded hybridly. Thus, highly customizable intensity polarization response of...

Abstract Polyolefin separators, such as polypropylene (PP) and polyethylene (PE) are the commonly used separators for lithium batteries, which have good mechanical properties chemical/electrochemical stability, but their high‐temperature dimensional stability is poor Li + transference number ( t ) low. Recently, much attention has been paid to developing with new substrates, so far there no separator replace polyolefin large‐scale application. Therefore, surface modification of enhance its...

Implementing a metalens with wide field-of-view (FOV) is crucial for compact and practical imaging devices. To this end, virtual-diffraction-aperture (VDA)-based synthesis method in combination numerical diffraction-field analyzer, dipole-based model expansion, proposed to efficiently effectively extend the FOV of given metalens. By introducing virtual diffraction aperture (VDA), transforms complicated optimization regarding complex amplitude distribution on metalens, rather straightforward...

Abstract Integrated radiation‐type metasurfaces (RA‐M) have gained importance in the development of next‐generation wireless communications and integrated electronics. They facilitate advanced electromagnetic (EM) wave control with a single radiation aperture. However, most RA‐Ms fail to simultaneously decouple amplitude, phase, polarization information spatial wavefront owing intrinsic restrictions meta‐radiator limited design strategy. This study proposes demonstrates full‐space...

Abstract Carbon materials play a pivo tal role across various advanced applications, yet their synthesis traditionally necessitates inert atmospheres to avert oxidation at high temperatures, thus inflating production costs and resource utilization. Achieving precision of functional porous carbon via air‐pyrolysis remains formidable challenge. Herein, streamlined, one‐step lava‐like carbonization approach is introduced enabling the fabrication carbons boasting tailored morphologies (0‐3D),...

Microwave metasurfaces are often difficult to apply in integrated systems due the required spatial feeds. Herein, a compact circularly polarized (CP) radiation-type metasurface (RTM) realizing precise far-field radiation pattern manipulation is proposed. Two e-shaped elements superimposed constitute meta-atoms based on geometric phase, exhibiting full <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$2\pi $...

Fifth-generation (5G) communication requires spatial multiplexing multiple-input multiple-output systems with integrated hardware. With the increase in number of users and emergence Internet Things devices, complex beamforming devices have become particularly important future wireless to meet different requirements, where independent amplitude phase modulations are urgently required for devices. Herein, by utilizing constructive interference between multiple geometric-phase responses,...

An improved approach for J-value segmentation (JSEG) is presented unsupervised color image segmentation. Instead of quantization algorithm, an automatic classification method based on adaptive mean shift (AMS) clustering used nonparametric data set. The results are to construct Gaussian mixture modelling (GMM) the calculation soft J value. region growing algorithm in JSEG then applied segmenting multiscale J-images. Experiments show that synergism and AMS GMM overcomes limitations...

Different from the aperture-shared antennas based on transmission-mode (T-mode) Fabry-Perot-Cavity-Antenna (FPCA), reflection-mode (R-mode) beam-scanning FPCA is first excavated to realize aperture multiplexing for realizing high gain beam scanning in both operating bands. A band R-mode chosen as basic antenna and a low-band wide-angle reflectarray (RA) integrated into its partially reflective surface (PRS). dual-band dual-function composite-structural PRS unit cell offering bidirectional...

Abstract The bidirectional asymmetric transmission (BAT) meta‐devices have attracted widespread attention as an emerging display, encryption, and information storage platform. Generally, the multiplexing capability of BAT determines upper limit loading capacity multi‐task integrated systems. However, existing still depend on structural properties arrangement meta‐atoms, limiting number manipulated channels, operating frequency, polarization combinations. Herein, a universal meta‐device,...