Negative-Stiffness Inclusions as a Platform for Real-Time Tunable Phononic Metamaterials
نویسندگان
چکیده
منابع مشابه
Tunable phononic crystals with anisotropic inclusions
We present a theoretical study on the tunability of phononic band gaps in two-dimensional phononic crystals consisting of various anisotropic cylinders in an isotropic host. A two-dimensional plane-wave expansion method was used to analyze the band diagrams of the phononic crystals; the anisotropic materials used in this work include cubic, hexagonal, trigonal, and tetragonal crystal systems. B...
متن کاملTunable split-ring resonators for nonlinear negative-index metamaterials.
We study experimentally the dynamic tunability and self-induced nonlinearity of split-ring resonators incorporating variable capacitance diodes. We demonstrate that the eigenfrequencies of the resonators can be tuned over a wide frequency range, and significantly, we show that the self-induced nonlinear effects observed in the varactor-loaded split-ring resonator structures can appear at relati...
متن کاملTunable magnetoelastic phononic crystals
J.-F. Robillard, O. Bou Matar, J. O. Vasseur, P. A. Deymier, M. Stippinger, A.-C. Hladky-Hennion, Y. Pennec, and B. Djafari-Rouhani Joint European Laboratory LEMAC, Ecole Centrale de Lille, 59651 Villeneuve d’Ascq, France Institut d’Électronique, de Microélectronique et de Nanotechnologie, UMR CNRS 8520, Cité Scientifique, 59652 Villeneuve d’Ascq Cedex, France Department of Materials Science an...
متن کاملTunable optical negative-index metamaterials employing anisotropic liquid crystals
A full-wave analysis technique based on the finite element-boundary integral method is developed and used to rigorously treat the scattering from periodically structured metamaterials incorporating anisotropic liquid crystals LCs and dispersive materials. Reconfiguration of the negative-index metamaterials is achieved by controlling the magnetic resonance via tuning permittivity of the embedded...
متن کاملLightweight Mechanical Metamaterials with Tunable Negative Thermal Expansion.
Ice floating on water is a great manifestation of negative thermal expansion (NTE) in nature. The limited examples of natural materials possessing NTE have stimulated research on engineered structures. Previous studies on NTE structures were mostly focused on theoretical design with limited experimental demonstration in two-dimensional planar geometries. In this work, aided with multimaterial p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Applied
سال: 2019
ISSN: 2331-7019
DOI: 10.1103/physrevapplied.11.024062