基于拓扑声子晶体的拓扑逻辑门、制备和调控方法

By utilizing topological phononic crystal-based topological logic gate devices, and employing zinc oxide single crystals and phononic crystal electrode layers, topological phononic crystals were fabricated and manipulated. This enabled the coupling of acoustic waves and electrical signals with logic gate functions, solving the problems of multifunctionality and electroacoustic integration of topological phononic crystal devices, and demonstrating high robustness and anti-interference capabilities.

CN116798399BActive Publication Date: 2026-07-17HUAZHONG UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Filing Date
2023-08-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing topological phononic crystal devices have fixed structures, making it difficult to achieve multifunctionality and electroacoustic integration, and thus unable to meet the needs of intelligentization.

Method used

Design a topological logic gate device based on a topological phononic crystal. The topological phononic crystal is prepared by femtosecond laser etching using zinc oxide single crystal material and phononic crystal electrode layer. Triangular prism surface and bottom electrodes are set on its boundary. Combined with wire output port, the coupling of acoustic waves and electrical signals and logic gate function are realized.

Benefits of technology

This invention achieves multifunctionality of topological phononic crystals, possessing high robustness and anti-interference capabilities. It enables the electrical output of logic OR gates and XOR gates without altering the structure, providing a new approach to electroacoustic integration.

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Abstract

本发明公开了基于拓扑声子晶体的拓扑逻辑门器件、制备和调控方法,包括:拓扑声子晶体、声子晶体电极和电输出端口;拓扑声子晶体的材料为压电单晶,以三棱柱旋转角度分为声子晶体I与声子晶体II,两种声子晶体排列交叉出四条边界,两条边界作为输入端,两条边界作为输出端;声子晶体电极分为三棱柱表面电极与底面电极,声子晶体振动时两电极之间会形成电位差,电极层厚度远小于声子晶体厚度;电输出端口为连接至三棱柱表面电极与底面电极上的金线,能引出声子晶体振动时的响应电压,所述三棱柱位于拓扑声子晶体输出边界上。本发明利用拓扑声子晶体实现声学逻辑门电学输出,为电声集成器件的设计与应用提供新思路和途径。
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