Phononic metamaterials

WebApr 26, 2024 · This paper presents a comprehensive review of the literature and trends on the design of periodic microstructural composite materials including photonic crystals (PtCs), phononic crystals (PnCs), and metamaterials (MMs) by topology optimization. WebPlanar metamaterials are built for vibration shielding, while a myriad of works focus on integrating phononic crystals in microsystems for filtering, waveguiding, and dynamical strain energy confinement in optomechanical systems.

(PDF) Topological phononic metamaterials - ResearchGate

An acoustic metamaterial, sonic crystal, or phononic crystal, is a material designed to control, direct, and manipulate sound waves or phonons in gases, liquids, and solids (crystal lattices). Sound wave control is accomplished through manipulating parameters such as the bulk modulus β, density ρ, and chirality. They can be engineered to either transmit, or trap and amplify sound waves at certain frequencies. In the latter case, the material is an acoustic resonator. WebDec 12, 2024 · We present a phononic crystal to achieve efficient manipulation of surface acoustic waves (SAW). The structure is made of finite phononic micro-ridges arranged periodically in a substrate surface. ... The rapid progress in phononics led to the appearance of acoustic metamaterials (AM), which demonstrate exceptional properties such as … nottingham trent university criminology https://kathurpix.com

From Photonic Crystals to Seismic Metamaterials: A Review via Phononic …

WebPhononic metamaterials with a frequency band gap can effectively block elastic waves in certain frequency ranges, but often require [...] Read more. In engineering acoustics, the … WebApr 7, 2024 · Introduction to Photonic and Phononic Crystals and Metamaterials, by Arthur R. McGurn, presents a study of the fundamental properties of optical and acoustic materials which have been of recent interest in nanoscience and device technology. The level of the presentations is appropriate for advanced undergraduates, beginning graduate students, … WebFeb 22, 2024 · Abstract. Phononic bandgap metamaterials, which consist of periodic cellular structures, are capable of absorbing energy within a certain frequency range. Designing metamaterials that trap waves across a wide wave frequency range is still a challenging task. In this paper, we present a deep feature learning-based design framework for both … nottingham trent university computing

Phononic-subsurface flow stabilization by subwavelength locally ...

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Phononic metamaterials

Tunable bandgaps and acoustic characteristics of ... - ScienceDirect

WebOct 10, 2024 · For nonreciprocal interactions ( ε ≠ 0), the first-order term in Eq. ( 1) breaks inversion symmetry u → − u, x → − x. This asymmetry has dramatic consequences on the nature of the ... WebNov 4, 2015 · Here we demonstrate numerically a phononic topological metamaterial in an elastic-wave analogue of the quantum spin Hall effect. A dual-scale phononic crystal slab …

Phononic metamaterials

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WebThis comprehensive book presents all aspects of acoustic metamaterials and phononic crystals. The emphasis is on acoustic wave propagation phenomena at interfaces such as … WebPhononic materials are engineered media that can manipulate waves propagating through them due to their synthetic and periodic architecture. However, phononic materials are …

WebOct 23, 2024 · Acoustic metamaterials (AMM) and phononic crystals (PC) have the potential to unfold a new wave of disruptive technologies to radically transform human interactions, sensory communications, and beyond. Although essential, cultivating a deep understanding of the fundamental theory and design principles is insufficient alone, in the practical ... WebIn this work, taking GaN–AlN contact as an example, we demonstrated a new mechanism to enhance the interfacial thermal conductance using nano-phononic metamaterials. First, …

WebIn this work, taking GaN–AlN contact as an example, we demonstrated a new mechanism to enhance the interfacial thermal conductance using nano-phononic metamaterials. First, how a superlattice affects the ITC is investigated, and it is found that with decreasing superlattice periodic length, the ITC first decreases and then increases, because ... WebMar 3, 2024 · The multifunctionality of graphene metamaterials offer a novel platform for manufacturing innovative optical and photonic devices with the advantages of broad …

WebDec 1, 2009 · Phononic metamaterials [1,2], including acoustic metamaterials [1,2,3,4,5,6,7] and mechanical metamaterials [8,9,10], was proposed about three decades ago and have been developed...

WebMar 3, 2024 · The multifunctionality of graphene metamaterials offer a novel platform for manufacturing innovative optical and photonic devices with the advantages of broad working bandwidth, high efficiency, fast response, tunability, integrability, and low energy consumption. The review provides insights to future innovations for the booming … how to show document outline in wordWebJan 13, 2013 · Acoustic Metamaterials And Phononic Crystals. Download Acoustic Metamaterials And Phononic Crystals full books in PDF, epub, and Kindle. Read online … nottingham trent university course datesWebFeb 2, 2024 · Acoustic metamaterials can also be non-periodic. Examples include functionally graded materials (Cummer and Schurig 2007), graded index phononic crystals (Lin et al. 2009), and acoustic black holes (Zhao et al. 2014; Zhao and Semperlotti 2024). The selection of optimal values of the different design parameters to ensure the materials … nottingham trent university disability teamWebA photonic metamaterial ( PM ), also known as an optical metamaterial, is a type of electromagnetic metamaterial, that interacts with light, covering terahertz ( THz ), infrared … nottingham trent university courses 2022WebAug 1, 2016 · Mechanical metamaterials derive their properties not from their microscopic composition but rather through a clever engineering of their structure at larger scales (1). Various design principles have been put forward and successfully applied in the past. how to show documents on teams meetingWebApr 7, 2024 · Introduction to Photonic and Phononic Crystals and Metamaterials, by Arthur R. McGurn, presents a study of the fundamental properties of optical and acoustic … how to show documents side by sideWebMar 30, 2024 · The proposed phononic metastructures facilitate all-directional wave control provided that the frequency of propagating wave lies inside the bandgap frequency range. … how to show documents on desktop windows10