Results 71 to 80 of about 991,692 (161)
Advanced Functional Materials, Volume 36, Issue 84, 19 October 2026.USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll +17 more
wiley +1 more source
, 2007 The authors have experimentally studied the radiation of a point acoustic source placed inside a two-dimensional phononic crystal of square lattice. They show that a highly directional radiation with a half-power angular width of 6° can be achieved when ...
Liu, Zhengyou +15 more
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Phononic Crystal Wave Structures
, 2009 Phononic crystal wave structures and methods of making same are discussed in this application. According to some embodiments, an acoustic structure can generally comprise a phononic crystal slab configured as a micro/nano-acoustic wave medium.
core
Type-II Dirac phonons in a two-dimensional phononic crystal
APL MaterialsWe explore the distinctive properties associated with a type-II Dirac point in a simply structured phononic crystal with a lattice deformation. This type-II Dirac point emerges at the Brillouin zone boundary, resulting from the lifting of two degenerate ...
Changqing Xu +3 more
doaj +1 more source
Numerical Simulation of Acoustic Waves in a Two-Dimensional Phononic Crystal: Negative Refraction [PDF]
, 2010 The lens effect of acoustic waves in a two-dimensional (2D) phononic crystal is studied by numerical simulation based on the finite-difference time-domain (FDTD) method.
Kurose, Tomoyuki +2 more
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Waveguiding in two-dimensional piezoelectric phononic crystal plates
, 2007 International audienceWe investigate the possibility of designing phononic crystal-based devices for telecommunication applications using materials commonly employed in microfabrication. We focus our attention on a phononic crystal made of a square array
Pennec, Yan +13 more
core +1 more source
AIP Advances, 2014 This work deals with an analytical and numerical study of the focusing of the lowest order anti-symmetric Lamb wave in gradient index phononic crystals.
J. Zhao, B. Bonello, O. Boyko
doaj +1 more source
Trees as large-scale natural phononic crystals: Simulation and experimental verification
International Soil and Water Conservation Research, 2019 Urban trees are usually planted on a periodic layout in the spatial configuration. We regard urban trees as large-scale natural phononic crystals. The entire forest is reduced to a reasonable “tree-soil” unit cell based on the phononic crystal theory and
Jiankun Huang, Yifan Liu, Yaguang Li
doaj +1 more source
Electrical Modulations of Integrated Phononic Crystal Resonators on Lithium Niobate
Using our microwave-frequency electrically-modulated phononic-crystal resonators on lithium niobate, we demonstrate atomic-like transitions between two phononic modes, including Autler–Townes splitting, alternating current Stark shift, and Rabi ...
Ivan I. Kravchenko +9 more
core +1 more source
Research on the Parameters of Phononic Crystals Suitable for Automotive Noise Control
, 2010 Phononic crystal is a novel type of periodic composites which is presented near years. When the elastic wave frequency falls within its band gap of the phononic crystal, the propagation of vibration and sound are forbidden.
Xiao Xiong Jin +2 more
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