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 … WebOct 19, 2012 · While early phononic crystals and acoustic metamaterials research on spectral properties focused on frequencies in the sonic (10 2 –10 3 Hz) and ultrasonic (10 4 –10 6 Hz) range, phononic crystals with hypersonic (GHz) properties have been fabricated by lithographic techniques and analyzed using Brillouin Light Scattering [].It has also been …
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WebApr 19, 2024 · Mechanical metamaterials and phononic crystals enable localizing, focusing, and guiding of elastic or acoustic waves in various ways. Here, we describe the physical mechanisms underpinning wave ... WebJan 5, 2024 · Acoustic superlens using Helmholtz-resonator-based metamaterials Xishan Yang, Jing Yin, Gaokun Yu, Linhui Pengand Ning Wang more... Achromatic acoustic gradient-index phononic crystal lens for broadband focusing Jaeyub Hyun, Wan-Ho Cho, Choon-Su Park, Jiho Changand Miso Kim more...
WebJan 13, 2013 · This comprehensive book presents all aspects of acoustic metamaterials and phononic crystals. The emphasis is on acoustic wave propagation phenomena at … 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.
WebAn 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 … WebAug 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.
WebMar 2, 2024 · Topological phononic metamaterials. The concept of topological energy bands and their manifestations have been demonstrated in condensed matter systems as …
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... northmen a viking saga rated rWebSep 6, 2024 · Pillared phononic crystals, metamaterials, and metasurfaces are an emerging class of artificial structured media, featuring surfaces that consist of pillars—or branching substructures—standing on a plate or a substrate. A pillared phononic crystal exhibits Bragg band gaps, while a pillared metamaterial may feature both Bragg band gaps and ... how to scan documents on kyoceraWebPhononic materials are engineered media that can manipulate waves propagating through them due to their synthetic and periodic architecture. However, phononic materials are … how to scan documents on notes appWebOct 19, 2012 · In unit cell analysis, the dynamics of a periodic material [ (e.g., atomic-scale crystalline materials, phononic (or photonic) crystals, periodic acoustic (or electromagnetic) metamaterials] is fully characterized by the application of Bloch’s theorem [ 12] on a single representative unit cell. how to scan documents on scannerWebIn 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 to scan documents on outlookWebDec 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 … how to scan documents to computer fileWebPillared phononic crystals, metamaterials, and metasurfaces are an emerging class of artificial structured materials, featuring surfaces, that consist of pillars-or branching … northmen glass llc