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相关概念视频

X-ray Crystallography02:18

X-ray Crystallography

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The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
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相关实验视频

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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
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对具有斜落入角度的双层衍射元件的衍射效率分析.

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    此摘要是机器生成的。

    这项研究引入了一种新方法,用于设计在大型撞击角度有效的双层衍射光学元件 (DLDOE). 该方法准确地预测了衍射效率,简化了DLDOE的设计和应用.

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    Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System
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    科学领域:

    • 光学是什么?光学是什么?光学是什么?
    • 光学工程是指光学工程.
    • 衍射光学是不同的光学.

    背景情况:

    • 分射光学元件 (DOE) 对于操纵光线至关重要.
    • 设计用于大撞击角度的双层衍射光学元件 (DLDOE) 存在挑战.
    • 需要精确分析斜射下的衍射效率.

    研究的目的:

    • 提出和验证一种用于分析和设计DLDOE在大型撞击角度的新方法.
    • 在DLDOE分析中考虑阴影,屏蔽效应和相延迟校正.
    • 将拟议的方法与现有的标尺衍射理论进行比较.

    主要方法:

    • 结合有效面积方法与斜面因子进行DLDOE分析.
    • 结合了对射效率的阴影和屏蔽效应.
    • 纠正因斜率发生而导致的相位延迟.

    主要成果:

    • 分析了衍射效率,波长,入射角和周期宽度之间的关系.
    • 与矢量衍射理论模拟对比验证了该方法.
    • 与各种条件下的模拟相比,证明了相似的衍射效率分布.

    结论:

    • 拟议的方法为DLDOE设计和应用提供了一个简单而有效的方法.
    • 该方法准确地预测了在大事件角度的性能.
    • 这有助于开发先进的光学系统.