Ultra-High <i>Q</i> of 11000 in Surface Acoustic Wave Resonators by Dispersive Modulation

Surface Acoustic Wave (SAW) Resonators for Monitoring Conditioning Film Formation

We propose surface acoustic wave (SAW) resonators as a complementary tool for conditioning film monitoring. Conditioning films are formed by adsorption of inorganic and organic substances on a substrate the moment this substrate comes into contact with a liquid phase. In the case of implant insertion, for instance, initial protein adsorption is required to start wound healing, but it will also ...

Mechanism for acoustic leakage in surface- acoustic wave resonators on rotated Y-cut lithium tantalate substrate

Acoustic Field Analysis of Surface Acoustic Wave Dispersive Delay Lines Using Inclined Chirp IDT

SUMMARY Acoustic field analysis results of surface acoustic wave dispersive delay lines using inclined chirp IDTs on a Y-Z LiNbO 3 sub-strate are described. The calculated results are compared with optical measurements. The angular spectrum of the plane wave method is applied to calculation of the acoustic fields considering the anisotropy of the SAW velocity by using the polynomial approximati...

High-contrast optical modulation by surface acoustic waves

Numerical calculations are employed to study the modulation of light by surface acoustic waves (SAWs) in photonic band gap (PBG) structures. The on/off contrast ratio in a PBG switch based on an optical cavity is determined as a function of the SAW-induced dielectric modulation. We show that these structures exhibit high contrast ratios even for moderate acousto-optic coupling. PACS: 42.79.Ta, ...

Capillary wave motion excited by high frequency surface acoustic waves

This paper presents a numerical and experimental study of capillary wave motion excited by high frequency surface acoustic waves SAWs . The objective of this study is to provide insight into the dynamic behavior of the fluid free surface and its dependence on the excitation amplitude. A two-dimensional numerical model that couples the motion of the piezoelectric substrate to a thin liquid layer...