Acoustic metasurface for refracted wave manipulation

Han, Lixiang; Yao, Yuanwei; Zhang, Xin; Wu, Fugen; Dong, Huafeng; Mu, Zhongfei; Li, Jingbo

doi:10.1016/j.physleta.2017.12.004

Cited by 24 publications

(10 citation statements)

References 17 publications

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“…And the asymmetric acoustic transmissions are further reported by Harbin Institute of Technology [41] and Nanjing University [42]. The AMSs with space-coiling subunits have generated the Bessel beam and Airy-like beam by manipulating the transmitted acoustic phase, and highly efficient acoustic focusing lens with different focal length is achieved by using two symmetrical AMSs with different distance [43,44]. The AMS lens has further applications in medical ultrasound imaging, biomedical test and therapy, and particle trapping and manipulation.…”

Section: Transmission-type Metasurfacementioning

confidence: 97%

Research progress of acoustic metasurface in China

Wang

Chu

2019

EPJ Appl. Metamat.

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Acoustic metasurface (AMS) is an important branch of metamaterials which has important applications in various fields such as earthquake protection, noise reduction, acoustic hiding, architectural acoustics, particle manipulation, and medical ultrasound and therapy. The AMS with subwavelength thickness can manipulate the acoustic wave by controlling the wavefront phase based on the generalized acoustic Snell's law. In this review, the research and application progresses of AMS in China were introduced, and the further development trends of AMS were analyzed and remarked.

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Section: Transmission-type Metasurfacementioning

confidence: 97%

Research progress of acoustic metasurface in China

Wang

Chu

2019

EPJ Appl. Metamat.

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“…Bessel beams are also investigated in acoustics. Bessel beams for bulk acoustic waves in air or water environment have been achieved by a variety of methods, such as Fresnel lenses [12], Soret zone plate lenses [13], flat acoustic lenses made of one-dimensional phononic crystals [14], arrays of piezoelectric transducers [15], annular tapes [16], reflecting [17] and refracting metasurfaces [18][19][20], as well as metamaterial-based gradient-index lenses [21]. The generated Bessel beams can be used to trap microparticles utilizing the negative axial radiation force [13].…”

Section: Introductionmentioning

confidence: 99%

Surface acoustic wave quasi-Bessel beams generated by symmetrically tilted interdigital transducers

Uluğ¹,

Kuruoğlu²,

Yalçın³

et al. 2022

J. Phys. D: Appl. Phys.

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Formation of surface acoustic wave quasi-Bessel beams on a piezoelectric substrate through superposition of plane waves generated by interdigital transducers tilted symmetrically about the propagation axis is numerically and experimentally demonstrated. Acting as an axicon, the tilted transducers provide a facile way for quasi-Bessel beam generation. Finite-element method simulations reveal that non-diffracting Bessel beams, whose length and width are 193 and 1.38 wavelengths, respectively, can be obtained on a YX-128◦ lithium niobate substrate for an axicon angle of 15 degrees. The corresponding values for 20 degrees are 146 and 1.05 wavelengths, respectively. For a wavelength of approximately 300 micrometers, transmission spectra show that Bessel beam formation can be achieved at frequencies around 13.3 MHz. Bessel beam is visualized through a thin liquid film of methanol on the substrate. Surface acoustic wave Bessel beams can be utilized in acoustophoresis in microfluidic systems and sensing applications.

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“…Combing with the lumped parameter principle and the sub-wavelength size of the components (Anzinger et al, 2019; El Bouzidi et al, 2019; Long et al, 2018), the vibration system can equal to an impedance analog system. The previous work mainly contains the micro (Han et al, 2018; Kaina et al, 2015) and macro (Wu et al, 2019) integration of HR array (Fang et al, 2006; Maurel et al, 2018), the performance exploration of single HR with different size and geometry (Li et al, 2017), and the feedback control (Mao et al, 2018). For example, Liu et al (2018) study the periodic arrangements of the Helmholtz resonators coupled with the piezoelectric composite sheet.…”

Section: Introductionmentioning

confidence: 99%

Theoretical model and dynamic wave-amplification effect of the high intensity Helmholtz sound source

Qiao

Cheng

Jin

2021

Journal of Vibration and Control

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Helmholtz sound source consists of Helmholtz resonator and speaker and belongs to a new type of high-intensity sound source. It has potential industrial advantage in the aerodynamic acoustic application for the large amplitude wave. Based on the lumped parameter principle of acoustic impedance, an acoustic theoretical model is suggested. The model reveals the amplification regulation of the sound source on the acoustic wave. Through the acoustic theoretical computation, a dynamic amplification and an amplification limitation are analyzed. The wave-amplification effect attributes to the parameter regulation of the macro, micro, and dynamic-varied sizes of the sound source. The repetitive motion of the vibrating membrane of speaker causes three working states of balance, squeeze, and stretch. The three states act as specific boundary conditions and demonstrate as three different theoretical curves. The theoretical boundary curves codetermine an experimental curve, which essentially limits the practical amplification effect. Nevertheless, the amplification gain of sound pressure amplitude reaches up to 1.8 times, and the potential maximum amplitude reaches up to 3600 Pa (164 dB). The two quantitative characteristics indicate the maximum capability of the sound source on wave-amplification effect. The control sensitivity of the complicated impedance parameters on wave amplification is 0.26 Pa/Hz. The acoustic theoretical model is valuable in the series aspects of the industrial design, manufacture, and application of the sound source. Especially, the theoretical innovation lays the foundation of solid to these aspects.

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Acoustic metasurface for refracted wave manipulation

Cited by 24 publications

References 17 publications

Research progress of acoustic metasurface in China

Research progress of acoustic metasurface in China

Surface acoustic wave quasi-Bessel beams generated by symmetrically tilted interdigital transducers

Theoretical model and dynamic wave-amplification effect of the high intensity Helmholtz sound source

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