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Updated: Jun 30, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

在具有延长粒度的多晶材料中进行超声波散射:比较3D和2D理论和数值分析

Juan Camilo Victoria-Giraldo1, Bing Tie1, Jérôme Laurent2

  • 1Université Paris-Saclay, CentraleSupélec, ENS Paris-Saclay, CNRS, LMPS, Gif-Sur-Yvette, 91190, France.

Ultrasonics
|March 27, 2025
PubMed
概括

这项研究将超声波弹性波散射模型扩展到具有延长粒度的材料. 研究结果揭示了粒粒形状如何影响波浪特性,并使用有限元素分析验证模型.

关键词:
衰减减弱化 减弱 减弱弹性波浪传播弹性波浪传播阶段速度 阶段速度聚晶材料是一种多晶材料.超声波散射是一种超声波散射.

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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: