V2EX elliptically polarized light

Elliptically Polarized Light

Definition / 定义

椭圆偏振光:一种偏振态的光,其电场矢量在传播方向的垂直平面内随时间变化时,端点描绘出椭圆轨迹。它是线偏振圆偏振之间的更一般情形(圆偏振与线偏振都可视为椭圆偏振的特殊情况)。

Pronunciation / 发音

/lptkli plrazd lat/(BrE)
/lptkli polrazd lat/(AmE)

Examples / 例句

Elliptically polarized light can be produced by passing linearly polarized light through a quarter-wave plate at an angle.
将线偏振光以一定角度通过四分之一波片可以产生椭圆偏振光。

In anisotropic crystals, phase retardation between orthogonal components often converts incident polarization into elliptically polarized light, which can be analyzed using Stokes parameters.
在各向异性晶体中,正交分量之间的相位延迟常把入射偏振转换为椭圆偏振光,可用斯托克斯参量进行分析。

Etymology / 词源

该短语由三部分构成:elliptically(“呈椭圆地”)源自 ellipse(椭圆,来自希腊语 elleipsis,意为“缺失/省略”,在几何中指“相较圆有所‘缺失’”的形状);polarized 来自 polarize(使产生偏振,“朝向两极/确定方向”之意);light 源自古英语 lēoht。合起来描述“偏振状态呈椭圆形式的光”。

Related Words / 相关词汇

Literary Works / 文学作品

  • Principles of Optics(Max Born & Emil Wolf)在偏振与相干性章节中讨论椭圆偏振光及其表征方法。
  • Optics(Eugene Hecht)以教学方式讲解线/圆/椭圆偏振及波片产生偏振的机制。
  • Classical Electrodynamics(J. D. Jackson)在电磁波与偏振的相关内容中涉及椭圆偏振的描述。
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