V2EX double refraction

Double Refraction

定义 Definition

double refraction(双折射)指光线进入某些各向异性的透明材料(如方解石、石英等晶体)时,会被分成两束以不同方向传播、折射率不同的光(常称“寻常光”和“非常光”)的现象。该现象是晶体光学与偏振研究中的重要概念。(也常与 birefringence 同义或密切相关。)

发音 Pronunciation (IPA)

/dbl rfrkn/

例句 Examples

Light passes through calcite and shows double refraction.
光穿过方解石会出现双折射现象。

In anisotropic crystals, double refraction splits a single beam into two rays with different velocities and polarization states.
在各向异性晶体中,双折射会把一束光分裂成两束速度不同、偏振状态不同的光线。

词源 Etymology

double 来自拉丁语 duplus(“双倍的”),经由古法语进入英语;refraction 来自拉丁语 refractio(“折回、折断”之意),与 refringere(“折断、折回”)有关。组合起来,double refraction 字面意思就是“发生两次/成双的折射”,用来描述光在某些晶体中分裂成两束折射光的现象。该术语在近代光学发展(尤其是晶体与偏振研究)中逐渐固定下来。

相关词 Related Words

文学与名著用例 Literary Works

  • Isaac Newton, Opticks(《光学》):讨论光的折射、颜色与相关光学现象的经典著作中常涉及晶体与折射问题,为后续研究双折射奠定背景。
  • Christiaan Huygens, Traité de la lumière (Treatise on Light, 《光论》):对方解石等材料中的光传播现象进行理论解释,双折射是相关论述的重要对象。
  • Augustin-Jean Fresnel, Mémoire sur la double réfraction(《论双折射的论文/回忆录》):系统研究双折射与偏振的关键文献之一,推动了波动光学的发展。
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