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Updated: Jun 9, 2026

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用等离子高超音速透镜聚焦表面声波

Hilario D Boggiano1, Lin Nan2, Gustavo Grinblat1,3

  • 1Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Física, 1428 Buenos Aires, Argentina.

Nano letters
|May 16, 2024
PubMed
概括

研究人员使用金纳米磁盘创建了一个纳米级声学镜头. 该设备将高超音速声波集中到一个狭窄的光束中,从而实现高灵敏度的精确机械探测.

关键词:
声学镜头的声音镜头.连贯的声学声子是连贯的声子.塑式纳米天线 纳米天线表面声波是一种表面声波.

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相关概念视频

Standing Waves in a Cavity01:28

Standing Waves in a Cavity

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: