V2EX total internal reflection

Total Internal Reflection

释义 Definition

(物理/光学)全反射:当光从高折射率介质射向低折射率介质,并且入射角大于临界角时,光不会折射透出,而是完全反射回原介质的现象。(常见于光纤、棱镜等)

发音 Pronunciation (IPA)

/totl ntnl rflkn/

例句 Examples

Total internal reflection happens when light tries to go from water to air at a steep angle.
当光以很大的入射角从水射向空气时,会发生全反射。

Engineers use total internal reflection in fiber-optic cables to guide signals over long distances with minimal loss.
工程师利用光纤中的全反射来引导信号长距离传输,并尽量减少损耗。

词源 Etymology

该短语由 total(完全的)+ internal(内部的)+ reflection(反射)构成,字面意思是“内部的完全反射”。它是光学中的术语,用来强调光在介质内部边界处发生“不再折射、全部反回”的情况;与一般“eflection(反射)”相比,关键条件是从高折射率到低折射率且入射角超过critical angle(临界角)

相关词 Related Words

文学与经典著作 Literary Works

  • Optics(Eugene Hecht)以教学方式系统讲解全反射、临界角与光纤应用
  • Principles of Optics(Max Born & Emil Wolf)在电磁波与光学理论框架中讨论全反射
  • Fundamentals of Photonics(Bahaa E. A. Saleh & Malvin C. Teich)在波导、光纤与光子学应用中频繁出现该术语
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