Enhanced acousto-optic properties of Silicon carbide based layered structure

Abstract

This study investigates the feasibility of using silicon carbide-based layered surface acoustic wave (SAW) devices in acousto-optic applications. The acousto-optic properties of the temperature-stable layered structure TeO 3 /SiC/128 o Y-X LiNbO 3 are investigated through theoretical analysis. This analysis includes the evaluation of key parameters such as the overlap integral, fi gure of merit, and diffraction ef fi ciency. The SAW propagation characteristics and fi eld pro fi les required for these calculations are obtained using SAW software. Results show that the layered structure has high diffraction ef fi ciency of nearly 96% and a promising value for the acousto-optic fi gure of merit, indicating potential use in low driving power acousto-optic devices. The study concludes that the 3C e SiC-based layered structure possesses excellent acousto-optic properties and has potential for use in acousto-optic devices that can withstand harsh environmental conditions.