Articles you may be interested inHigh-frequency surface acoustic wave devices based on LiNbO 3 ∕ diamond multilayered structure Appl. Phys. Lett. 87, 213503 (2005); 10.1063/1.2135383 Temperature stable LiNb O 3 surface acoustic wave device with diode sputtered amorphous Te O 2 over-layer Appl.Fabrication of c-axis oriented ZnO/AlN thin films prepared by radio frequency reactive sputtering and development of ZnO/AlN layered structure surface acoustic wave devices
We show that ferroelectrics-based periodic structure made of BaSrTiO 3 (BST) cubes, arrayed onto a metal plate with a thin dielectric spacer film exhibit a dramatic enhancement of absorbance with value close to unity. The enhancement is found around the Mie magnetic resonance of the Ferroelectrics cubes with the backside metal layer stopping any transmitted waves. It also involves quasi-perfect impedance matching resulting in reflection suppression via simultaneous magnetic and electrical activities. In addition, it was shown numerically the existence of a periodicity optimum, which is explained from surface waves analysis along with trade-off between the resonance damping and the intrinsic loss of ferroelectrics cubes. An experimental verification in a hollow waveguide configuration with a good comparison with full-wave numerical modelling is at last reported by measuring the scattering parameters of single and dual BST cubes schemes pointing out coupling effects for densely packed structures. V
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