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相关概念视频

Propagation of Waves01:07

Propagation of Waves

2.3K
When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
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Standing Waves in a Cavity01:28

Standing Waves in a Cavity

871
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:
871

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相关实验视频

Updated: Jun 7, 2025

Demonstration of a Hyperlens-integrated Microscope and Super-resolution Imaging
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转换 evanescent 波到传播波的超-heme-微球.

Haojie Wang, Wenxuan Shi, Jiajie Wang

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    概括
    此摘要是机器生成的。

    超黑米微球通过优化 evanescent 波转换来增强超分辨率成像. 了解它们的光学特性,如折射率和厚度,是最大限度地提高成像分辨率的关键.

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    Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
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    相关实验视频

    Last Updated: Jun 7, 2025

    Demonstration of a Hyperlens-integrated Microscope and Super-resolution Imaging
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    Published on: September 8, 2017

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    Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
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    Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
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    科学领域:

    • 光学显微镜的使用方法
    • 纳米技术纳米技术
    • 生物物理学的生物物理.

    背景情况:

    • 超分辨率成像技术的目的是克服光的衍射极限.
    • 超 Hemi 微球 (HHMS) 已成为增强光学显微镜的有希望的工具.
    • 通过HHMS改善成像的精确机制尚未完全阐明.

    研究的目的:

    • 揭示HHMS增强超分辨率成像的潜在机制.
    • 为优化HHMS提供指导,使其具有广泛适用性.
    • 阐明 evanescent 波的转换和传输的条件.

    主要方法:

    • 对 evanescent 波的转换和传输条件的导出.
    • 使用有限差异时间域 (FDTD) 方法分析HHMS特性 (折射率,厚度,周围环境).
    • 阐明HHMS的最佳沉浸条件.

    主要成果:

    • 详细分析HHMS特性如何影响 evanescent波的转换和传输.
    • 确定控制HHMS增强成像性能的关键因素.
    • 了解折射率,厚度和环境因素的作用.

    结论:

    • 这项研究阐明了HHMS增强超分辨率成像背后的机制.
    • 优化HHMS特性和沉浸条件对于最大限度地提高成像性能至关重要.
    • 这项工作为HHMS在先进显微镜中的更广泛应用提供了基础.