Acoustic Metamaterials
Acoustic Metamaterials in Aeronautics
... by metamaterials can undoubtedly give a contribution in this ...on acoustic metamaterials, this potential still remain undisclosed for applications that involve a moving ...of acoustic ...
19
Fabrication and characterization of 3D printed thin plates for acoustic metamaterials applications
... Abstract— This paper presents a 3D printing technique based on stereolithography and direct light processing for the fabrication of low resonance frequency thin plates suitable for acoustic metamaterials ...
8
Acoustic metamaterials for medical ultrasound and non destructive evaluation
... of acoustic frequencies that are transmitted through materials, and have been used in many material studies where signals are embedded in noise ...Usually, acoustic metamaterials operate over a ...
256
Recent advances in acoustic metamaterials for simultaneous sound attenuation and air ventilation performances
... The acoustic meta-absorber is a special kind of acoustic metamaterial capable of providing high sound absorption in a targeted frequency ...incident acoustic energy with the absorbers [12]. The ...
24
Recent advances in acoustic metamaterials for simultaneous sound attenuation and air ventilation performances
... these metamaterials usually involves the hybridization of two different kinds of subwavelength resonators ...proposed acoustic composite structure consisted of a long hollow tube with multiple side holes ...
20
Enhancing the sound absorption of small-scale 3D printed acoustic metamaterials based on Helmholtz resonators
... Abstract—Acoustic metamaterials have recently become of interest for their ability to attenuate sound by breaking the mass- density ...paper, acoustic metamaterials based on Helmholtz ...
8
Design of Acoustic Metamaterials and Metasurfaces.
... Acoustic metamaterials are artificially engineered materials or structures that exhibit exotic properties which do not exist in ...of acoustic metasurfaces, as a sub-genre of acoustic ...
141
Chiral Seismic Attenuation with Acoustic Metamaterials
... We study the analogy between the linear elasticity theory equations and classical Maxwell equation with chiral effects and we propose a new method of an earthquake-resistant design to support conventional aseismic ...
6
Acoustic wave science realized by metamaterials
... cal metamaterials, the field of acoustic metamaterials has expanded marvelously over the past 15 ...review. Acoustic parameters, the mass density and bulk modulus, which are analogous to the ...
15
3D metamaterials
... Fig. 3 | Gallery of designed 3D acoustical and mechanical metamaterial unit cells and corresponding experimental realizations. a | Unit cell with internal mass–spring resonance that leads to negative effective mass ...
14
High resolution acoustic imaging at low frequencies using 3D printed metamaterials
... Metamaterial research started in the field of optics, where it was noticed that a material containing regular forms of microstructure could be used to make a lens with a resolution greater than the normal diffraction ...
11
Elastic Metamaterials Making Use of Chirality: A Review
... non-resonant acoustic metamaterials containing fluid components [19] and ...an acoustic metamaterial by using a one-dimensional array of subwavelength Helmholtz resonators, and found the abnormal ...
16
Nano-optomechanical nonlinear dielectric metamaterials
... frame used as a platform for fabrication of free-standing all-dielectric metamaterials. (b) Scanning electron microscope image of part of a nano-cantilever metamaterial array fabricated in a Si membrane by focused ...
6
Metamaterials Manufacturing: Pathway to Industrial Competitiveness
... two-dimensional metamaterials (metasurfaces) with unit cells large enough to be compatible with printed circuit board manufacturing ...U.S. metamaterials start-up, creates metasurfaces with glass-on-glass ...
42
Metamaterials: A Leading Edge of Science and Technology
... attention. Metamaterials have provided basis to realize a practical cloaking device by successful demonstration of invisible cloaks experimentally in the microwave regime ...metamaterial acoustic cloak is ...
6
Manipulating Electromagnetic Fields with Advanced Metamaterials
... by metamaterials for the duration of the excitation pulse, and to turn it back on for the detection ...tunable metamaterials [36, 35], whose properties change under the influence of external stimulus, ...
178
Optimization and Characterization of Negative Uniaxial Metamaterials
... This paper outlined the physics and optimization of negative uniaxial metamaterials. The NUMs were optimized for strength of anisotropy as well as for space stretching. Analytical expressions were derived and ...
11
Reciprocal Invisible Cloak with Homogeneous Metamaterials
... layered metamaterials [28] and periodic L-C circuit ...the metamaterials constructed from layers of silver and silica are usually narrow-banded, and they are often difficult to implement from a practical ...
11
The study of plasmonics in nanohole metallic metamaterials
... theoretically in metallic metamaterials made from an array of split ring resonators. SPPs were found at the interface between the split ring resonators and the substrate. The absorption coefficient spectrum was ...
136
Resonant Metallic Nanostructures for Active Metamaterials and Photovoltaics
... This thesis describes the design and development of resonant metallic nanostructures for use in active metamaterials. The first part of the thesis analyzes passive systems and includes some of the concepts that ...
176