Results 81 to 90 of about 13,426 (215)

Stimulated Brillouin scattering in metamaterials

, 2016
We compute the SBS gain for a metamaterial comprising a cubic lattice of dielectric spheres suspended in a background dielectric material. Theoretical methods are presented to calculate the optical, acoustic, and opto-acoustic parameters that describe ...
de Sterke, C. Martijn, Kuhlmey, B. T., Lapine, M., Poulton, C. G., Smith, M. J. A., Wolff, C.   +5 more
core   +1 more source

Inherently Disordered Auxetic Metamaterials

Advanced Science, EarlyView.
Inherently disordered auxetic metamaterials based on random chiral Delaunay triangulations are designed and investigated using numerical simulations and experimental tests. These disordered frameworks exhibit orthotropic behavior and a large negative Poisson's ratio (ca.
Matteo Montanari, Reza Moghimimonfared, Andrea Spaggiari, Luke Mizzi   +3 more
wiley   +1 more source

Topology optimization of acoustic metamaterials with negative mass density using a level set-based method

Mechanical Engineering Journal, 2014
Much effort has been made to experimentally fabricate acoustic metamaterials that display novel properties, such as single or double negativity, negative refractive index.
Lirong LU, Masaki OTOMORI, Takayuki YAMADA, Takashi YAMAMOTO, Kazuhiro IZUI, Shinji NISHIWAKI   +5 more
doaj   +1 more source

Asymptotic network models of subwavelength metamaterials formed by closely packed photonic and phononic crystals

, 2017
We demonstrate that photonic and phononic crystals consisting of closely spaced inclusions constitute a versatile class of subwavelength metamaterials. Intuitively, the voids and narrow gaps that characterise the crystal form an interconnected network of
Craster, Richard V., Schnitzer, Ory, Vanel, Alice L.   +2 more
core   +1 more source

Acoustic jet based on acoustic metamaterial

, 2021
12 pages, 4 ...
Zhao, Liuxian, Horiuchi, Timothy, Yu, Miao   +2 more
openaire   +2 more sources

Lattice Genome Framework for Regionally Tailored Component‐Level Multi‐Objective Design in Additive Manufacturing

Advanced Science, EarlyView.
A Lattice Genome framework links geometric and process “genes” to lattice “phenotypes” via correction‐calibrated high‐throughput simulations and a growing performance database. Genome‐driven retrieval and recombination of unit cells enables component‐level, regionally tailored multi‐objective design: stress fields are programmed under constant relative
Haoyuan Deng, Yufan Zhao, Mingyang Cao, Haiou Yang, Pan Wang, Hongze Wang, Hao Wang, Akihiko Chiba, Xin Lin   +8 more
wiley   +1 more source

Two-Dimensional Pentamode Metamaterials: Properties, Manufacturing, and Applications

Crystals
Metamaterials are artificial materials with properties depending mainly on their designed structures instead of their materials. Pentamode metamaterials are one type of metamaterial.
Chuang Zhou, Qi Li, Xiaomei Sun, Zifei Xiao, Haichao Yuan   +4 more
doaj   +1 more source

Fine manipulation of sound via lossy metamaterials with independent and arbitrary reflection amplitude and phase

Nature Communications, 2018
The formation of true holograms requires control of both amplitude and phase; however, acoustic metamaterials are generally limited to phase control only. Here, Zhu et al.
Yifan Zhu, Jie Hu, Xudong Fan, Jing Yang, Bin Liang, Xuefeng Zhu, Jianchun Cheng   +6 more
doaj   +1 more source

Thin-Film Metamaterials called Sculptured Thin Films

, 2010
Morphology and performance are conjointed attributes of metamaterials, of which sculptured thin films (STFs) are examples. STFs are assemblies of nanowires that can be fabricated from many different materials, typically via physical vapor deposition onto
A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Lakhtakia, A. Shalabaney, A.C. Popta van, A.L. Elias, B. Dick, D.-X. Ye, D.-X. Ye, E. Ertekin, E. Schubert, F. Wang, F. Wang, F. Wang, F. Zhang, F. Zhang, G.K. Kiema, H. Tan, I. Hodgkinson, I.J. Hodgkinson, I.J. Hodgkinson, I.J. Hodgkinson, J.A. Polo, J.A. Polo Jr, J.A. Polo Jr, J.A. Reyes, J.A. Sherwin, J.A. Sherwin, J.A. Sherwin, J.B. Geddes III, J.C. Sit, J.J. Steele, J.J. Steele, J.M. Nieuwenhuizen, J.N. Broughton, K. Robbie, K. Robbie, K. Robbie, K.D. Harris, M. Malac, M. Suzuki, M.A. Motyka, M.A. Motyka, M.C. Demirel, M.C. Demirel, M.O. Jensen, M.W. Horn, M.W. Horn, M.W. Seto, N. Verplanck, N.O. Young, P.C.P. Hrudey, R. Messier, R. Messier, R. Messier, R. Walser, R.J. Carey, R.J. Martín-Palma, R.J. Martín-Palma, R.J. Martín-Palma, S. Pursel, S. Tsoi, S.M. Pursel, T. Motohiro, T.G. Mackay, V.C. Venugopal, V.C. Venugopal, Y. Inoue, Y. Zhou, Y.J. Park   +83 more
core   +1 more source

Tunable Sound Absorption via Evanescent‐Wave Coupling in Asymmetric Bilayer Metasurfaces

Advanced Science, EarlyView.
Tunable sound absorption is realized through a bilayer metasurface system governed by evanescent‐wave coupling. This work demonstrates that such evanescent‐wave coupling provides a controllable scattering channel that destructively interferes with the specular reflection.
Pyung Sik Ma, Hyung Jin Lee
wiley   +1 more source