Journal articles: 'Acoustic waveguiding'

1

Pyatnitsky, L. N. "Acoustic pulse in a wall-less waveguiding." Technical Physics Letters 28, no. 3 (March 2002): 246–49. http://dx.doi.org/10.1134/1.1467290.

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2

Jen, C. K., Z. Wang, J. F. Bussiere, A. Nicolle, E. L. Adler, and K. Abe. "Acoustic waveguiding rods with graded velocity profiles." Ultrasonics 30, no. 2 (March 1992): 91–94. http://dx.doi.org/10.1016/0041-624x(92)90040-s.

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3

Shen, Junyao, Sulei Fu, Qi Li, Cheng Song, Fei Zeng, and Feng Pan. "Simulation of temperature compensated waveguiding layer acoustic wave devices." Journal of Physics D: Applied Physics 52, no. 7 (December 13, 2018): 075105. http://dx.doi.org/10.1088/1361-6463/aaf37b.

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4

Wang, Zhen, Si-Yuan Yu, Fu-Kang Liu, Yuan Tian, Samit Kumar Gupta, Ming-Hui Lu, and Yan-Feng Chen. "Slow and robust plate acoustic waveguiding with valley-dependent pseudospins." Applied Physics Express 11, no. 10 (September 10, 2018): 107301. http://dx.doi.org/10.7567/apex.11.107301.

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Ghasemi Baboly, M., A. Raza, J. Brady, C. M. Reinke, Z. C. Leseman, and I. El-Kady. "Demonstration of acoustic waveguiding and tight bending in phononic crystals." Applied Physics Letters 109, no. 18 (October 31, 2016): 183504. http://dx.doi.org/10.1063/1.4966463.

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Babaee, Sahab, Johannes T. B. Overvelde, Elizabeth R. Chen, Vincent Tournat, and Katia Bertoldi. "Reconfigurable origami-inspired acoustic waveguides." Science Advances 2, no. 11 (November 2016): e1601019. http://dx.doi.org/10.1126/sciadv.1601019.

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We combine numerical simulations and experiments to design a new class of reconfigurable waveguides based on three-dimensional origami-inspired metamaterials. Our strategy builds on the fact that the rigid plates and hinges forming these structures define networks of tubes that can be easily reconfigured. As such, they provide an ideal platform to actively control and redirect the propagation of sound. We design reconfigurable systems that, depending on the externally applied deformation, can act as networks of waveguides oriented along one, two, or three preferential directions. Moreover, we demonstrate that the capability of the structure to guide and radiate acoustic energy along predefined directions can be easily switched on and off, as the networks of tubes are reversibly formed and disrupted. The proposed designs expand the ability of existing acoustic metamaterials and exploit complex waveguiding to enhance control over propagation and radiation of acoustic energy, opening avenues for the design of a new class of tunable acoustic functional systems.

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Ghasemi Baboly, M., C. M. Reinke, B. A. Griffin, I. El-Kady, and Z. C. Leseman. "Acoustic waveguiding in a silicon carbide phononic crystals at microwave frequencies." Applied Physics Letters 112, no. 10 (March 5, 2018): 103504. http://dx.doi.org/10.1063/1.5016380.

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El-atmani, Ilham, Ilyass El kadmiri, Aissam Khaled, Driss Bria, Mounsif Ech Cherif El Kettani, and Pierre Maréchal. "Acoustic Splitter Waves Based on Ramified System Made of Waveguides." E3S Web of Conferences 364 (2023): 04002. http://dx.doi.org/10.1051/e3sconf/202336404002.

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In this paper, we studied the propagation of acoustic waves in an acoustic ramified system. Our proposed system contains an input waveguide of length d0 and three output lines (three channels), each output line contains a semi-infinite waveguide. The theoretical analysis is based on the Transfer Matrix Method (TMM), which allows us to calculate the three transmission rates T1, T2, T3 and the reflection rate R. We demonstrate that our proposed three-output channels system can be used to design a multifunctional device that functions as an amplitude splitter: an incident sound wave is splited to three output channels. This system is capable of achieving various waveguiding characteristics with perfect channels transmissions.

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Le Brizoual, Laurent, Omar Elmazria, Sergei Zhgoon, Akram Soussou, Frederic Sarry, and Mohammed Abdou Djouadi. "AlN/ZnO/diamond waveguiding layer acoustic wave structure: Theoretical and experimental results." IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 57, no. 8 (August 2010): 1818–24. http://dx.doi.org/10.1109/tuffc.2010.1620.

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10

Indaleeb, Mustahseen M., and Sourav Banerjee. "Simultaneous Dirac-like Cones at Two Energy States in Tunable Phononic Crystals: An Analytical and Numerical Study." Crystals 11, no. 12 (December 7, 2021): 1528. http://dx.doi.org/10.3390/cryst11121528.

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Simultaneous occurrence of Dirac-like cones at the center of the Brillouin zone (Γ) at two different energy states is termed Dual-Dirac-like cones (DDC) in this article. The occurrence of DDC is a rare phenomenon. Thus, the generation of multiple Dirac-like cones at the center of the Brillouin zone is usually non-manipulative and poses a challenge to achieve through traditional accidental degeneracy. However, if predictively created, DDC will have multiple engineering applications with acoustics and vibration. Thus, the possibilities of creating DDC have been identified herein using a simple square periodic array of tunable square phononic crystals (PnCs) in air media. It was found that antisymmetric deaf bands may play critical roles in tracking the DDC. Hence, pivoting on the deaf bands at two different energy states, an optimized tuning parameter was found to achieve Dirac-like cones at two distinct frequency states, simultaneously. Orthogonal wave transport identified as key Dirac phenomena was achieved at two frequencies, herein. It was identified that beyond the Dirac-like cone, the Dirac phenomena remain dominant when a doubly degenerated state created by a top band with positive curvature and a near-flat deaf band are lifted from a bottom band with negative curvature. Utilizing a mechanism of rotating the PnCs near a fixed deaf band, frequencies are tracked to form the DDC, and orthogonal wave transport is demonstrated. Exploiting the dispersion behavior, unique acoustic phenomena, such as ballistic wave transmission, pseudo diffusion and acoustic cloaking are also demonstrated at the Dirac frequencies using numerical simulation. The proposed tunable acoustic PnCs will have important applications in acoustic and ultrasonic imaging, waveguiding and even acoustic computing.

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11

Khelif, Abdelkrim, Saeed Mohammadi, Ali Asghar Eftekhar, Ali Adibi, and Boujamaa Aoubiza. "Acoustic confinement and waveguiding with a line-defect structure in phononic crystal slabs." Journal of Applied Physics 108, no. 8 (October 15, 2010): 084515. http://dx.doi.org/10.1063/1.3500226.

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12

Li, Yinggang, Tianning Chen, Xiaopeng Wang, Ting Ma, and Ping Jiang. "Acoustic confinement and waveguiding in two-dimensional phononic crystals with material defect states." Journal of Applied Physics 116, no. 2 (July 14, 2014): 024904. http://dx.doi.org/10.1063/1.4889846.

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13

Bokhari, Ahmad H., Abbas Mousavi, Bin Niu, and Eddie Wadbro. "Topology optimization of an acoustic diode?" Structural and Multidisciplinary Optimization 63, no. 6 (February 7, 2021): 2739–49. http://dx.doi.org/10.1007/s00158-020-02832-9.

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AbstractBy using topology optimization, we consider the problem of designing a passive acoustic device that allows for one-way flow of sound waves; such a device is often colloquially referred to as an acoustic diode. The Helmholtz equation is used to model the time harmonic linear wave propagation together with a Dirichlet-to-Neumann (DtN) type boundary condition, and the finite element method is used for discretization. The objective of this study is to maximize the wave propagation in one direction (from left to right) and minimize the wave propagation in the reverse direction (from right to left) for planar incoming waves. The method of moving asymptotes (MMA) solves the optimization problem, and a continuation approach is used for the penalizing intermediate design variables. The results for the optimized waveguide show that more than 99.8% of the power of planar incoming waves get transmitted from left to right while less than 0.3% gets transmitted in the reverse direction for planar incoming waves in the specified frequency range. Since a true diode is a non-reciprocal device and here we used a linear acoustic wave model, which is basically reciprocal, we discuss details about how it appears to be possible to obtain a one-way waveguiding effect using this linear model.

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14

Wu, Junxiang, Gang Zuo, and Fuyin Ma. "Non-resonant waveguiding-spiralizer for generating acoustic orbital angular momentum with arbitrary number of channels." Materials & Design 213 (January 2022): 110367. http://dx.doi.org/10.1016/j.matdes.2021.110367.

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15

Oudich, Mourad, M. Badreddine Assouar, and Zhilin Hou. "Propagation of acoustic waves and waveguiding in a two-dimensional locally resonant phononic crystal plate." Applied Physics Letters 97, no. 19 (November 8, 2010): 193503. http://dx.doi.org/10.1063/1.3513218.

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16

Khelif, Abdelkrim, Younes Achaoui, and Boujemaa Aoubiza. "In-plane confinement and waveguiding of surface acoustic waves through line defects in pillars-based phononic crystal." AIP Advances 1, no. 4 (December 2011): 041404. http://dx.doi.org/10.1063/1.3675923.

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17

Cicek, Ahmet, Olgun Adem Kaya, and Bulent Ulug. "Acoustic waveguiding by pliable conduits with axial cross sections as linear waveguides in two-dimensional sonic crystals." Journal of the Acoustical Society of America 134, no. 5 (November 2013): 3613–18. http://dx.doi.org/10.1121/1.4824122.

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18

Faiz, Mohd Syafiq, Mahmoud Addouche, Ahmad Rifqi Md Zain, Kim S. Siow, Amar Chaalane, and Abdelkrim Khelif. "Experimental Demonstration of a Multichannel Elastic Wave Filter in a Phononic Crystal Slab." Applied Sciences 10, no. 13 (July 2, 2020): 4594. http://dx.doi.org/10.3390/app10134594.

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With the aim of selecting particular frequencies of interest and rejecting others, the waveguiding and filtering properties of a two-dimensional phononic crystal slab are investigated in the context of a filtering application. To this end, we designed and manufactured a metallic device that consists of a square lattice of cylindrical pillars mounted on the top of a plate by using 3D printing technology. We respectively explored the theoretical and experimental characteristics of the device by using finite element method, a Micro System Analyzer (MSA) and a scanning laser Doppler vibrometer. The proposed device shows a complete band gap for Lamb wave around 0.3 MHz with a relative band-width of 30 % . Tailorable waveguides are realized inside this phononic crystal by inserting several space gaps to achieve a demultiplexing effect through the splitting of an acoustic signal towards three different bandpass frequency channels. The demultiplexing performance has been experimentally demonstrated by achieving rejection levels up to 60 dB. The proposed phononic platform can have a significant impact in signal processing as well as droplet manipulation for biological applications.

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19

Zhukov, B. V., and A. V. Odnovo. "Monitoring the difference in liquid levels in adjacent tanks." Radiotekhnika, no. 204 (April 9, 2021): 115–19. http://dx.doi.org/10.30837/rt.2021.1.204.13.

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The possibility of synchronous monitoring of coolant levels in the cooling systems of nuclear and thermal power plants before and after the barrier mesh using a specialized level gauge is considered. The block diagram of a level gauge providing current synchronous control of liquid levels in two adjacent channels (reservoirs), as well as the difference in liquid levels in them, is presented. A feature of the structural diagram of a specialized acoustic level gauge is the use of a radiation source common to both channels and a device for dividing the common waveguide path into two channels. An algorithm for the functioning of a specialized level gauge has been developed, in which, based on time diagrams, it is shown how the level is controlled in each channel and the difference in liquid levels before and after the barrier grid is calculated. The description of the algorithm is accompanied by calculated expressions for determining the levels and the difference in liquid levels. For a level gauge made in the acoustic wavelength range, a condition is given that is necessary for the creation of a device that provides matching when dividing a common channel into two independent channels of pulse signal propagation. This condition made it possible to establish the relationship between the inner diameters of cylindrical pipes used as waveguide paths of an acoustic wave. Variants of the implementation of a specialized level gauge based on two modifications of the ZOND-3M level gauge are proposed, in which cylindrical pipes are used as waveguiding systems. It is shown that when using the AP-7VT transceiver, the level gauge will have an operating range of up to 10m with a level resolution of ± 1mm, and when using the AP-70T transceiver, it will have an operating range of up to 20m with a level resolution of ± 1cm.

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20

Xiao, Qiang, Xiaojun Ji, Xiaoxin Ma, and Ping Cai. "A New General Form of 2-D Coupling-of-Modes Equations for Analysis of Waveguiding in Surface Acoustic Wave Devices." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 67, no. 5 (May 2020): 1033–39. http://dx.doi.org/10.1109/tuffc.2019.2958676.

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21

Dekkar, Damia, Fabien Bénédic, Cécile Floer, Sami Hage-Ali, Ovidiu Brinza, Jocelyn Achard, and Omar Elmazria. "Study of Low Temperature Deposition of Nanocrystalline Diamond Films on ZnO/LiNbO3 Layered Structures Suitable for Waveguiding Layer Acoustic Wave Devices." physica status solidi (a) 215, no. 22 (August 6, 2018): 1800251. http://dx.doi.org/10.1002/pssa.201800251.

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22

Thota, M., and K. W. Wang. "Tunable waveguiding in origami phononic structures." Journal of Sound and Vibration 430 (September 2018): 93–100. http://dx.doi.org/10.1016/j.jsv.2018.05.031.

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23

Chiou, Meng-Jhen, Yu-Ching Lin, Takahito Ono, Masayoshi Esashi, Sih-Ling Yeh, and Tsung-Tsong Wu. "Focusing and waveguiding of Lamb waves in micro-fabricated piezoelectric phononic plates." Ultrasonics 54, no. 7 (September 2014): 1984–90. http://dx.doi.org/10.1016/j.ultras.2014.05.007.

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24

Mathy, A., H. U. Simmrock, and C. Bubeck. "Optical waveguiding in thin films of polyelectrolytes." Journal of Physics D: Applied Physics 24, no. 6 (June 14, 1991): 1003–8. http://dx.doi.org/10.1088/0022-3727/24/6/029.

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25

Muzar, Edward, Golnaz Azodi Aval, and James A. H. Stotz. "Wet-etched phononic crystal waveguiding on GaAs." Journal of Physics D: Applied Physics 51, no. 4 (January 10, 2018): 044001. http://dx.doi.org/10.1088/1361-6463/aaa0e4.

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26

Reid, S. A., A. Farr, A. M. Hall, M. Varasi, A. Annulli, and A. Vannucci. "Acousto‐optic performance of monomode dilute melt proton exchange waveguiding Bragg cells." Journal of Applied Physics 65, no. 8 (April 15, 1989): 3288–90. http://dx.doi.org/10.1063/1.342689.

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27

Boulle, A., S. Kilburger, P. Di Bin, E. Millon, C. Di Bin, R. Guinebretière, and A. Bessaudou. "Role of nanostructure on the optical waveguiding properties of epitaxial LiNbO3films." Journal of Physics D: Applied Physics 42, no. 14 (June 23, 2009): 145403. http://dx.doi.org/10.1088/0022-3727/42/14/145403.

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28

Choi, Yeongyu, Seung-Won Oh, Ho-Jin Sohn, and Tae-Hoon Yoon. "Broadband tunable polarization rotator based on the waveguiding effect of liquid crystals." Journal of Physics D: Applied Physics 54, no. 35 (June 22, 2021): 355108. http://dx.doi.org/10.1088/1361-6463/ac0925.

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29

Liu, W. C., C. L. Mak, and K. H. Wong. "Optical waveguiding in epitaxial Sr1.8Ca0.2NaNb5O15films integrated on Si(0 0 1) substrates." Journal of Physics D: Applied Physics 40, no. 3 (January 19, 2007): 749–53. http://dx.doi.org/10.1088/0022-3727/40/3/009.

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30

Huang, Wenbin, Su Shen, Donglin Pu, Guojun Wei, Yan Ye, Changsi Peng, and Linsen Chen. "Working characteristics of external distributed feedback polymer lasers with varying waveguiding structures." Journal of Physics D: Applied Physics 48, no. 49 (November 18, 2015): 495105. http://dx.doi.org/10.1088/0022-3727/48/49/495105.

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31

Kolobkova, E. V., A. A. Lipovskii, C. Montero, and J. Liñares. "Formation and modelling of optically waveguiding structures in a high-concentration Er-doped phosphate glass." Journal of Physics D: Applied Physics 32, no. 5 (January 1, 1999): L9—L12. http://dx.doi.org/10.1088/0022-3727/32/5/002.

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32

Khelif, Abdelkrim, Abdelkrim Choujaa, Sarah Benchabane, Bahram Djafari-Rouhani, and Vincent Laude. "Experimental study of guiding and filtering of acoustic waves in a two dimensional ultrasonic crystal." Zeitschrift für Kristallographie - Crystalline Materials 220, no. 9-10 (January 1, 2005). http://dx.doi.org/10.1524/zkri.2005.220.9-10.836.

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AbstractWe present a combined experimental and theoretical study of the guiding, bending and filtering of acoustic waves in an ultrasonic crystal. The crystal consists of a two-dimensional periodical array of steel rods immersed in water, for wich a complete acoustic band gap extending from 240 to 325 kHz is found experimentally. Waveguides for acoustic waves are further created by removing a line defect, on which stubs can be added by removing rods from the side-walls of the waveguide. Full transmission is observed for a one-period-wide straight waveguide within the full-band-gap of the perfect phononic crystal, i.e. for a waveguide aperture smaller than one acoustic wavelength. Waveguiding over a wide frequency range is also obtained for a one-period-wide waveguide with two sharp 90° bends. Finite-difference time-domain computations are found to be in good agreement with the measurements in all experimental configurations.

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33

Wang, Qiang, Yong Ge, Hong-xiang Sun, Haoran Xue, Ding Jia, Yi-jun Guan, Shou-qi Yuan, Baile Zhang, and Y. D. Chong. "Vortex states in an acoustic Weyl crystal with a topological lattice defect." Nature Communications 12, no. 1 (June 16, 2021). http://dx.doi.org/10.1038/s41467-021-23963-7.

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AbstractCrystalline materials can host topological lattice defects that are robust against local deformations, and such defects can interact in interesting ways with the topological features of the underlying band structure. We design and implement a three dimensional acoustic Weyl metamaterial hosting robust modes bound to a one-dimensional topological lattice defect. The modes are related to topological features of the bulk bands, and carry nonzero orbital angular momentum locked to the direction of propagation. They span a range of axial wavenumbers defined by the projections of two bulk Weyl points to a one-dimensional subspace, in a manner analogous to the formation of Fermi arc surface states. We use acoustic experiments to probe their dispersion relation, orbital angular momentum locked waveguiding, and ability to emit acoustic vortices into free space. These results point to new possibilities for creating and exploiting topological modes in three-dimensional structures through the interplay between band topology in momentum space and topological lattice defects in real space.

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34

Botter, Roel, Kaixuan Ye, Yvan Klaver, Radius Suryadharma, Okky Daulay, Gaojian Liu, Jasper van den Hoogen, et al. "Guided-acoustic stimulated Brillouin scattering in silicon nitride photonic circuits." Science Advances 8, no. 40 (October 7, 2022). http://dx.doi.org/10.1126/sciadv.abq2196.

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Coherent optomechanical interaction known as stimulated Brillouin scattering (SBS) can enable ultrahigh resolution signal processing and narrow-linewidth lasers. SBS has recently been studied extensively in integrated waveguides; however, many implementations rely on complicated fabrication schemes. The absence of SBS in standard and mature fabrication platforms prevents its large-scale circuit integration. Notably, SBS in the emerging silicon nitride (Si 3 N 4 ) photonic integration platform is currently out of reach because of the lack of acoustic guidance. Here, we demonstrate advanced control of backward SBS in multilayer Si 3 N 4 waveguides. By optimizing the separation between two Si 3 N 4 layers, we unlock acoustic waveguiding in this platform, potentially leading up to 15× higher Brillouin gain coefficient than previously possible in Si 3 N 4 waveguides. We use the enhanced SBS gain to demonstrate a high-rejection microwave photonic notch filter. This demonstration opens a path to achieving Brillouin-based photonic circuits in a standard, low-loss Si 3 N 4 platform.

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35

Taleb, F., and S. Darbari. "Tunable Locally Resonant Surface-Acoustic-Waveguiding Behavior by Acoustoelectric Interaction in ZnO -Based Phononic Crystal." Physical Review Applied 11, no. 2 (February 12, 2019). http://dx.doi.org/10.1103/physrevapplied.11.024030.

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36

Valipour, Ali, Mohammad H. Kargozarfard, Mina Rakhshi, Amin Yaghootian, and Hamid M. Sedighi. "Metamaterials and their applications: An overview." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, March 16, 2021, 146442072199585. http://dx.doi.org/10.1177/1464420721995858.

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Metamaterials are man-made substances with unique spatial alternations in their constituent components. They are widely used in modifying elastic, acoustic, or electromagnetic properties of materials. Metamaterials induce low/high-frequency band gaps to control wave propagations with different wavelengths and are also frequently applied in microwave engineering, waveguides, dispersion compensation, smart antennas, and lenses. For instance, permittivity and permeability of the metamaterials can take positive or negative values. Due to smaller single-cell dimensions than their wavelength, the selective frequency of surface-based metamaterials is used for waveguiding. The need for adjustable bandgaps can also lead to a plethora of research into metamaterials’ tunability for structures that operate at different speeds. In this article, recent studies in the field of metamaterials and their applications are reviewed. The piezoelectric metamaterials and the electromagnetic metamaterials are introduced that is followed by a review of new types of chiral metamaterials. Additionally, absorber, nonlinear, terahertz, tunable, photonic, selective surface-based frequency in acoustic metamaterials are comparedand some remarks on tuning bandgaps methods in locally resonant metamaterials are provided.

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Rodriguez, Jesse Alexander, and Mark A. Cappelli. "Inverse design of plasma metamaterial devices with realistic elements." Journal of Physics D: Applied Physics, September 20, 2022. http://dx.doi.org/10.1088/1361-6463/ac931d.

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Abstract In an expansion of a previous study [1], we apply inverse design methods to produce two-dimensional plasma metamaterial devices with realistic plasma elements which incorporate quartz envelopes, collisionality (loss), non-uniform density proﬁles, and resistance to experimental error/perturbation. Backpropagated ﬁnite diﬀerence frequency domain simulations are used to design waveguides and demultiplexers operating under the transverse magnetic polarization. Optimal devices with realistic elements are compared to previous devices with idealized elements, and several parameter initialization schemes for the optimization algorithm are explored. Demultiplexing and waveguiding are demonstrated for microwave-regime devices composed of plasma elements with reasonable space-averaged plasma frequencies ~10 GHz and a collision frequency ~1 GHz, allowing for future in-situ training and experimental realization of these designs.

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Journal articles on the topic 'Acoustic waveguiding'

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