Zone folding induced tunable topological interface states in one-dimensional phononic crystal plates

2019 ◽  
Vol 383 (23) ◽  
pp. 2797-2801 ◽  
Author(s):  
Hongbo Zhang ◽  
Bilong Liu ◽  
Xilong Zhang ◽  
Qianqian Wu ◽  
Xingang Wang
Keyword(s):  
Phononic Crystal ◽  
Interface States ◽  
One Dimensional ◽  
Zone Folding

scholarly journals Synthetic Weyl Points of the Shear Horizontal Guided Waves in One-Dimensional Phononic Crystal Plates

2021 ◽  
Vol 12 (1) ◽  
pp. 167
Author(s):  
Hongbo Zhang ◽  
Shaobo Zhang ◽  
Jiang Liu ◽  
Bilong Liu
Keyword(s):  
Guided Waves ◽  
Dimensional Space ◽  
Phononic Crystal ◽  
Phase Interface ◽  
Three Dimensional ◽  
Interface States ◽  
Geometrical Parameters ◽  
One Dimensional ◽  
Higher Dimensional ◽  
Shear Horizontal

Weyl physics in acoustic and elastic systems has drawn extensive attention. In this paper, Weyl points of shear horizontal guided waves are realized by one-dimensional phononic crystal plates, in which one physical dimension plus two geometrical parameters constitute a synthetic three-dimensional space. Based on the finite element method, we have not only observed the synthetic Weyl points but also explored the Weyl interface states and the reflection phase vortices, which have further proved the topological phase interface states. As the first realization of three-dimensional topological phases through one-dimensional phononic crystal plates in the synthetic dimension, this research demonstrates the great potential of applicable one-dimensional plate structural systems in detecting higher-dimensional topological phenomena.

scholarly journals Magnetically tunable topological interface states for Lamb waves in one-dimensional magnetoelastic phononic crystal slabs

AIP Advances ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 115201 ◽  
Author(s):  
Luyang Feng ◽  
Kan Huang ◽  
Jiujiu Chen ◽  
JiCheng Luo ◽  
Hongbo Huang ◽  
...  
Keyword(s):  
Lamb Waves ◽  
Phononic Crystal ◽  
Interface States ◽  
One Dimensional

Investigation of quasi-one-dimensional finite phononic crystal with conical section

Pramana ◽  
2014 ◽  
Vol 83 (6) ◽  
pp. 1003-1013
Author(s):  
ZHIQIANG FU ◽  
SHUYU LIN ◽  
SHI CHEN ◽  
XIAOJUN XIAN ◽  
CHENGHUI WANG
Keyword(s):  
Phononic Crystal ◽  
One Dimensional ◽  
Conical Section

scholarly journals One-dimensional broadband phononic crystal filter with unit cells made of two non-uniform impedance-mirrored elements

AIP Advances ◽  
2013 ◽  
Vol 3 (2) ◽  
pp. 022105 ◽  
Author(s):  
Il Kyu Lee ◽  
Yoon Jae Kim ◽  
Joo Hwan Oh ◽  
Yoon Young Kim
Keyword(s):  
Phononic Crystal ◽  
One Dimensional ◽  
Unit Cells

Acoustic wave frequency filtering in constant total length phononic crystals of Al/Pb multilayer

2021 ◽  
Author(s):  
Chittaranjan Nayak ◽  
Mehdi Solaimani ◽  
Alireza Aghajamali ◽  
Arafa H. Aly
Keyword(s):  
Acoustic Wave ◽  
Phononic Crystal ◽  
Phononic Crystals ◽  
Geometrical Parameters ◽  
One Dimensional ◽  
Internal Geometry ◽  
Total Length ◽  
Acoustic Filters ◽  
System Length ◽  
Phononic Band Gaps

In this study, we have scrutinized the frequency gap generation by changing the geometrical parameters of a one-dimensional phononic crystal. For this purpose, we have calculated the transmission coefficient of an incident acoustic wave by using the transfer matrix method. We have retained and fixed the total length of the system and changed the system internal geometry not to increase the system length too much. Another reason was to adjust the phononic band gaps and get the desired transmission properties by finding the optimum internal geometry without increasing or decreasing the total length of phononic crystals. In addition, we also propose few structures with the opportunity of applications in acoustical devices such as sonic reflectors. Our results can also be of high interest to design acoustic filters in the case that transmission of certain frequencies is necessary.

PIEZOELECTRIC MATERIAL AND ONE-DIMENSIONAL PHONONIC CRYSTAL

2019 ◽  
Vol 26 (02) ◽  
pp. 1850144 ◽  
Author(s):  
ARAFA H. ALY ◽  
AHMED NAGATY ◽  
Z. KHALIFA
Keyword(s):  
Electric Field ◽  
Piezoelectric Material ◽  
Material Properties ◽  
Phononic Crystal ◽  
Defect Layer ◽  
Phononic Crystals ◽  
Localized Modes ◽  
One Dimensional ◽  
Energy Applications ◽  
Relative Change

We have theoretically obtained the transmittance properties of one-dimensional phononic crystals incorporating a piezoelectric material as a defect layer. We have used the transfer matrix method in our analysis with/without defect materials. By increasing the thickness of the defect layer, we obtained a sharp peak created within the bandgap, that indicates to the significance of defect layer thickness on the band structure. The localized modes and a particular intensity estimated within the bandgap depend on the piezoelectric material properties. By applying different quantities of an external electric field, the position of the peak shifts to different frequencies. The electric field induces a relative change in the piezoelectric thickness. Our structure may be very useful in some applications such as sensors, acoustic switches, and energy applications.

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