Features of propagation of surface acoustic waves in two-dimensional phononic crystals on the surface of a lithium niobate crystal

Никитов, С. А.; Grigor’evskiĭ, A. V.; Grigor’evskii, V. I.; Kotelyanskiǐ, I. M.; Luzanov, V. A.; Mirgorodskaya, E. N.; Suchkov, S. G.

doi:10.1134/s1064226911070126

Cited by 5 publications

(3 citation statements)

References 26 publications

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“…22 Furthermore, the analysis used in this reference provides information about the elastic wave modes localized in the PnC but situated above the branch corresponding to the lower bulk transverse modes with different longitudinal or transverse polarization. Another proposed approach is to calculate the transmission through realistic structure using either analytical 29 or FE methods 22 that can give not only qualitative but also quantitative characteristics of the wave transmission. In all mentioned works, the SAW excitation was performed using harmonic force source with specified polarization direction excluding the impact of interdigital transducers (IDTs) on the amplitude-phase characteristics.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis and experimental study of surface acoustic wave propagation through two-dimensional pillar-based surface phononic crystal

Yankin

Talbi

et al. 2014

Journal of Applied Physics

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We study both theoretically and experimentally the interaction of surface elastic waves with 2D surface phononic crystal (PnC) on a piezoelectric substrate. A rigorous analysis based on 3D finite element method is conducted to calculate the band structure of the PnC and to analyze the transmission spectrum (module and phase). Interdigital transducers (IDTs) are considered for electrical excitation and detection, and absorbing boundary conditions are used to suppress wave's reflection from the edges. The PnCs are composed of an array of 20 Nickel cylindrical pillars arranged in a square lattice symmetry, and deposited on a LiNbO 3 substrate (128 Y cut-X propagating) between two dispersive IDTs. We investigate by means of band diagrams and transmission spectrum the opening band-gaps originating from pillars resonant modes and from Bragg band-gap. The physical parameters that influence and determine their appearance are also discussed. Experimental validation is achieved through electrical measurement of the transmission characteristics, including amplitude and phase. V

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Section: Introductionmentioning

confidence: 99%

Finite element analysis and experimental study of surface acoustic wave propagation through two-dimensional pillar-based surface phononic crystal

Yankin

Talbi

et al. 2014

Journal of Applied Physics

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“…The AlN/sapphire substrate material provided by Suzhou Nanowin Science and Technology Company [17]. In this layered structure, the crystal orientation [11][12][13][14][15][16][17][18][19][20]AlN is parallel to [1-100]Al 2 O 3 . The thickness of AlN film is about 3.0 μm.…”

Section: Methodsmentioning

confidence: 99%

“…As same as phononic crystals (PCs), SPCs also have frequency band structures which have been proved on silicon [10,11] and LiNiO 3 [12,13]. Propagation properties of SAWs and Lamb waves in PCs and SPCs were studied based on piezoelectric materials, such as quartz and LiNiO 3 [10][11][12][13][14][15]. Furthermore, some PC devices based on Lamb wave were designed and fabricated on AT-cut quartz plates, such as plate lens, waveguides and resonators [15,16].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity enhanced temperature sensor: one-port 2D surface phononic crystal resonator based on AlN/sapphire

Dong

Xue

Huang

et al. 2019

Semicond. Sci. Technol.

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According to the structure of a one-port surface acoustic wave (SAW) resonator, a one-port surface phononic crystal (SPC) resonator is designed. Both one-port SAW resonator and oneport SPC resonator are fabricated on AlN/Sapphire. Frequency responses and quality factors are studied. The one-port SAW resonator has a fundamental resonance mode at 693.07 MHz. Unlike the one-port SAW resonator, the one-port SPC resonator has two distinct resonance modes at 680.28 MHz and 698.91 MHz, respectively. From the simulation results by finite element method (FEM), these two resonance modes may come from the two cavities of the one-port SPC resonator. Frequency-versus-temperature behaviors of these two resonators are investigated. The results show that the frequencies of resonance modes of these two resonators are decreased linearly with the increased temperature. A new kind of temperature sensor is proposed by using frequency difference between these two resonance modes of the one-port SPC resonator. The eventual temperature coefficient of frequency (TCF) value of the temperature sensor is -99.30 ppm °C−1 which is twice more than that of the one-port SAW resonator. All results prove that temperature sensitivity is enhanced by using two mode characters of one-port SPC resonator based on AlN/Sapphire.

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Surface Acoustic Wave Scattering from an Array of Irregularities Comparable with a Wavelength

et al. 2015

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Features of propagation of surface acoustic waves in two-dimensional phononic crystals on the surface of a lithium niobate crystal

Cited by 5 publications

References 26 publications

Finite element analysis and experimental study of surface acoustic wave propagation through two-dimensional pillar-based surface phononic crystal

Finite element analysis and experimental study of surface acoustic wave propagation through two-dimensional pillar-based surface phononic crystal

Sensitivity enhanced temperature sensor: one-port 2D surface phononic crystal resonator based on AlN/sapphire

Surface Acoustic Wave Scattering from an Array of Irregularities Comparable with a Wavelength

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