Weaving patterns in fabrics, traditionally used for aesthetic purposes, present a largely untapped opportunity to create metamaterials that serve as passive layers for sensing, filtering, and signal processing. However, the hierarchical architecture of fabrics makes structural design and wave prediction challenging. Here, we establish fully woven fabrics as phononic crystals that passively filter and route elastic vibrations. Using double weaving, we integrate a soft cotton weave with stiff woven copper inclusions to form periodic fabric lattices with engineered dispersion. A multiscale modeling framework that combines homogenization of weave blocks with an effective-property macroscale model enables computationally efficient design of phononic crystals. Simulations and experiments confirm a pronounced phononic bandgap for out-of-plane vibrations in a finite fabric crystal, while an equivalent pure cotton weave shows no band suppression in the corresponding frequency range. Building on the same platform, we realize a fully woven higher-order topological insulator. Modal analysis and transmission measurements reveal in-gap edge states and localized corner states. These results show that phononic bandgaps and topological states can be directly encoded through weaving patterns and material contrast, enabling passive vibration management layers and multifunctional waveguiding fabrics for sensing, haptic interfaces, robotics, and noise mitigation.
在声子学领域,周期性模式控制振动,从而控制物质中的热和声音的流动。在这种声子晶体中产生的带隙实现了低耗散振动模式,并实现了对机械量子比特、高效波导和最先进传感的应用。在这里,我们结合声子和二维材料,并探讨通过施加机械压力操纵声子晶体的可能性。为此,我们制造了最薄的声子晶体从单层石墨烯和模拟其振动特性。我们发现一个带隙的MHz制度,在此范围内,我们本地化的缺陷模式与一个小的有效质量为0.72 ag = 0.002 $m_{physical}$。最后,我们利用石墨烯的灵活性和机械调谐有限大小的声子晶体。在高达30千帕的静电压力下,我们观察到整个声子系统的频率上升超过350%。同时,缺陷模式保持在带隙内并保持局部化,这表明高质量、动态可调的机械系统。
Photonics Initiative, Advanced Science Research Center, City University of New York(纽约市立大学高级科学研究中心光子学倡议);Gulliver, CNRS, ESPCI Paris, Université PSL(巴黎高等物理化工国立学院CNRS Gulliver实验室);Laboratory of Wave Engineering, EPFL(洛桑联邦理工学院波工程实验室);Faculty of Mechanical Engineering, Technion–Israel Institute of Technology(以色列理工学院机械工程学院);University of Chicago, James Franck Institute(芝加哥大学詹姆斯·弗兰克研究所);University of Chicago, Kadanoff Center for Theoretical Physics(芝加哥大学卡达诺夫理论物理中心);Walker Department of Mechanical Engineering, The University of Texas at Austin(德克萨斯大学奥斯汀分校沃克机械工程系);Physics Program, Graduate Center, City University of New York(纽约市立大学研究生院物理学项目)
Quantifying the effect of resonant amplitude and frequency of phononic material vibrations on the coupled fluid-structure interaction dynamics in separated aerodynamic flows
organization= The Grainger College of Engineering, Department of Mechanical Science;Engineering , addressline= University of Illinois Urbana-Champaign , postcode= Illinois, 61801 , city= Urbana , country= USA;organization= The Grainger College of Engineering, Department of Aerospace Engineering , addressline= University of Illinois Urbana-Champaign , postcode= Illinois, 61801 , city= Urbana , country= USA
Phononic Bragg Reflectors for Thermal Insulation of Scalable Cryogenic Control Electronics from Qubits
JARA-FIT Institute for Quantum Information, Forschungszentrum Jülich GmbH and RWTH Aachen University(亚琛联合量子信息研究所,于利希研究中心和亚琛工业大学);Fraunhofer-Institut für Photonische Mikrosysteme IPMS(弗劳恩霍夫光子微系统研究所);Institute of Applied Physics, TU Dresden(德累斯顿工业大学应用物理研究所);ARQUE Systems GmbH(ARQUE系统有限公司)