Multi‐Physical Lattice Metamaterials Enabled by Additive Manufacturing: Design Principles, Interaction Mechanisms, and Multifunctional Applications

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

Abstract Lattice metamaterials emerge as advanced architected materials with superior physical properties and significant potential for lightweight applications. Recent developments in additive manufacturing (AM) techniques facilitate the of lattice intricate microarchitectures promote their applications multi‐physical scenarios. Previous reviews on have largely focused a specific/single field, limited discussion properties, interaction mechanisms, multifunctional Accordingly, this article critically design principles, structure‐mechanism‐property relationships, enabled by AM techniques. First, are categorized into homogeneous lattices, inhomogeneous other forms, whose principles processes discussed, including benefits drawbacks different fabricating types lattices. Subsequently, structure–mechanism–property relationships mechanisms range fields, mechanical, acoustic, electromagnetic/optical, thermal disciplines, summarized to reveal critical principles. Moreover, metamaterials, such sound absorbers, insulators, manipulators, sensors, actuators, soft robots, management, invisible cloaks, biomedical implants, enumerated. These provide effective guidelines

Language: Английский

Advances in artificial intelligence for artificial metamaterials

APL Materials, Journal Year: 2024, Volume and Issue: 12(12)

Published: Dec. 1, 2024

The 2024 Nobel Prizes in Physics and Chemistry were awarded for foundational discoveries inventions enabling machine learning through artificial neural networks. Artificial intelligence (AI) metamaterials are two cutting-edge technologies that have shown significant advancements applications various fields. AI, with its roots tracing back to Alan Turing’s seminal work, has undergone remarkable evolution over decades, key including the Turing Test, expert systems, deep learning, emergence of multimodal AI models. Electromagnetic wave control, critical scientific research industrial applications, been significantly broadened by metamaterials. This review explores synergistic integration metamaterials, emphasizing how accelerates design functionality materials, while novel physical networks constructed from enhance AI’s computational speed ability solve complex problems. paper provides a detailed discussion AI-based forward prediction inverse principles metamaterial design. It also examines potential big-data-driven methods addressing challenges In addition, this delves into role advancing focusing on progress electromagnetic optics, terahertz, microwaves. Emphasizing transformative impact intersection between underscores improvements efficiency, accuracy, applicability. collaborative development process opens new possibilities innovations photonics, communications, radars, sensing.

Language: Английский

4D-printed intelligent reflecting surface with improved beam resolution via both phase modulation and space modulation

Microsystems & Nanoengineering, Journal Year: 2024, Volume and Issue: 10(1)

Published: Oct. 29, 2024

Abstract Recently, intelligent reflecting surfaces (IRSs) have emerged as potential candidates for overcoming the line-of-sight issue in 5 G/6 G wireless communication. These IRSs can manipulate direction of reflected beams, enabling efficient beam steering to enhance performance Each unit cell (or structure) an IRS commonly consists electrical elements phase modulation. However, by employing modulation alone, steer electromagnetic waves toward only discrete and specific angles, leaving a wide range out-of-beam areas. In this work, that uses both space is presented improve resolution continuously cover areas alone cannot address. A positive-intrinsic-negative diode mounted on modulation, 4D-printed reconfigured structure fabricated demonstrate The beam-steering function achieved alternating states diodes same columns, while improved controlling gaps between columns. functions are first theoretically numerically analyzed then experimentally verified, demonstrating additional angles −46°/+50°, −22°/+14°, −16°/+12° with −60°/+62°, −30°/+22°, ±16° alone. proposed offers possibility functional integration variety indoor applications within communication field.

Language: Английский