相关实验视频
Updated: Jun 27, 2025

08:06
Design and Fabrication of an Optical Fiber Made of Water
Published on: November 8, 2018
8.1K
具有水样性和拓传输性质的双功能模元材料
Yangyang Chu1, Yuan Hu2, Guanxi Wang1
1College of Software Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, People's Republic of China.
概括
这项研究引入了一种新型类似水的模甲基材料 (PM),模仿水的声学特性. 设计的PM表现出弹性波的强大的拓边缘状态,使得在水下波导中实现高效的传输和声学隐形.
科学领域:
- 声学超材料是一种声学超材料.
- 凝聚物质物理学 凝聚物质物理学
- 波浪的传播方式
背景情况:
- 五模元材料 (PMs) 具有独特的声学特性.
- 语音系统中的拓状态对缺陷具有强大耐受性.
- 实现声学隐形和高效的波传输对于水下应用至关重要.
研究的目的:
- 设计一种具有类似于水的声学性能的单金属材料模元材料 (PM).
- 为了研究在设计的PM中弹性波的拓边缘状态传输.
- 探索这种双功能PM的潜力,用于水下声波导.
主要方法:
- 使用单一的金属材料设计一种类似水的模元材料 (PM).
- 引入结构性扰动以打开迪拉克点退化并产生拓波段反转.
- 组织PM结构单元以实现拓边缘状态.
- 分析边缘状态对曲和空洞等缺陷的强度.
主要成果:
- 一种类似于水的模元材料 (PM) 成功设计.
- 结构性扰动导致迪拉克点退化和拓波段反转的开放.
- 实现了强大的拓边缘状态,证明了对缺陷的弹性.
- 总理在广泛的频率范围内展示了模仿水的声学特性,确保了水的透明度.
结论:
- 设计的双功能PM显示出出色的传输效率和声学隐形性.
- 它的类似水的声学特性使其适合于水下波导应用.
- 这项研究为开发先进的水下声学隐形波导提供了理论指导.
相关概念视频
Dual Nature of Electromagnetic (EM) Radiation
2.0K
Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the...
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the...
2.0K
Standing Waves in a Cavity
914
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
914

