智能模式用于弹性表面波的拓抽取
Shaoyun Wang1, Zhou Hu2, Qian Wu1
1Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA.
Science advances
|July 28, 2023
概括
拓式送引导弹性表面波,使它们免受缺陷的影响. 这种现象是使用有图案的表面来证明的,并通过实验验证,为强大的波浪控制铺平了道路.
科学领域:
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
- 波浪现象是一种波浪现象.
背景情况:
- 拓式送提供了一种强大的波浪传播方法,保护它们免受环境破坏.
- 弹性表面波对于各种应用至关重要,但它们对缺陷的敏感性限制了性能.
研究的目的:
- 用图案弹性表面来演示弹性表面波的拓式送.
- 探索创建用于波浪导航的合成维度.
- 为了研究这些波的强度,以防乱和缺陷.
主要方法:
- 一个弹性表面的制造,上面有阵列的共振柱和合桥的图案.
- 开发一个紧密结合模型和温泽尔-克拉默斯-布里卢恩 (Wentzel-Kramers-Brillouin,简称WKB) 分析来描述支柱动态.
- 数字模拟和实验验证波导和拓抽油的实验验证.
主要成果:
- 成功地展示了弹性表面波在图案表面上的拓抽送.
- 根据理论模型的预测,验证波浪从一个边缘向另一个边缘转移.
- 对拓表面波的观测显示出对引入的障碍和缺陷的免疫力.
结论:
- 拓是一种可行的机制,用于强大的弹性表面波传播.
- 开发的理论框架 (紧密结合模型和WKB分析) 准确地预测了拓抽.
- 这种方法为控制表面波和推进拓物质研究提供了一个多功能平台.
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