V2EX circular polarization

Circular Polarization

定义 Definition

圆偏振:一种电磁波(常见于光、无线电波)的偏振状态,其中电场矢量在传播方向垂直的平面内随时间旋转,轨迹为圆形。通常分为左旋圆偏振右旋圆偏振(取决于旋转方向与约定)。
(注:与之相关的还有椭圆偏振线偏振等。)

例句 Examples

Circular polarization can reduce signal loss when the receiver’s orientation changes.
圆偏振在接收端方向发生变化时,可以减少信号损失。

In optical experiments, circular polarization is often generated by passing linearly polarized light through a quarter-wave plate, which introduces a 90-degree phase shift between orthogonal components.
在光学实验中,圆偏振常通过让线偏振光经过四分之一波片来产生,因为它会在相互正交的分量之间引入 90 度的相位差。

发音 Pronunciation (IPA)

/skjlr polrzen/

词源 Etymology

circular 来自拉丁语 circulus(“圆、小圆环),表示“圆形的、环状的”。polarization 源于 polar(“极的、两极的”)加名词后缀 -ization,在物理语境中指“使波呈现某种偏振状态/偏振现象”。合在一起,字面意思就是“呈圆形变化的偏振(状态)”。

相关词 Related Words

文学与著作 Notable Works

  • Principles of Optics(Max Born & Emil Wolf)在偏振与光的传播章节中系统讨论圆偏振及其表征方法。
  • Optics(Eugene Hecht)以教学方式介绍线偏振、圆偏振、椭圆偏振与波片的生成机制。
  • Classical Electrodynamics(J. D. Jackson)在电磁波与辐射相关内容中涉及圆偏振作为场的基底/模式描述。
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