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相关概念视频

Bewley Lattice Diagram01:12

Bewley Lattice Diagram

854
The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.
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Standing Waves in a Cavity01:28

Standing Waves in a Cavity

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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:
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横向激光的空间特征.

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    此摘要是机器生成的。

    研究人员使用强烈的激光脉冲实现了侧向激光在氧原子. 这种可控的发射,垂直于激光器,为激光应用开辟了新的途径.

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    科学领域:

    • 原子,分子和光学物理学
    • 激光物理 激光物理

    背景情况:

    • 在气体介质中激光是通过高电磁场的共振激发来实现的.
    • 控制增益体积几何学可以使激光发射垂直于激光方向.

    研究的目的:

    • 为了描述侧向发射的激光,激光是通过在火焰中的氧原子中进行两光子送而产生的.
    • 为了研究这种侧向激光对激光能量,激发/发射光谱和空间特征的依赖.

    主要方法:

    • 使用强烈的35-femtosecond (fs) 激光脉冲在226nm波长.
    • 使用圆柱形镜子将激光脉冲聚焦到一张纸上,以创建特定的增益体积几何.
    • 分析结果的845nm激光束,垂直于光束方向发射.

    主要成果:

    • 成功生成了一个845nm激光束,垂直于激光器发射.
    • 在单一拍摄的发射图像中观察到干扰边缘,表明多个连贯的空间模式.
    • 确定超光作为侧向激光现象的重要贡献者.

    结论:

    • 证明了在氧原子中产生和表征侧向激光的可行性.
    • 这项研究代表了向理解和利用横向激光用于未来应用的基本步骤.
    • 这些发现表明,基于可控垂直发射的新型激光工具和发明的潜力.