V2EX optical cavity

Optical Cavity

Definition / 释义

光学谐振腔(也称“光腔”):由两面或多面反射镜(或其他反射结构)围成的空间,用来让光在其中来回反射并形成稳定的驻波/共振模式。它是激光器干涉测量高精度光学频率稳定等装置的核心部件之一。

Pronunciation / 发音(IPA)

/ptkl kvti/

Examples / 例句

The laser uses an optical cavity to amplify light.
激光器利用光学谐振腔来放大光。

By carefully aligning the mirrors, the optical cavity can support multiple resonant modes with very narrow linewidths.
通过精密调整反射镜的对准,光学谐振腔可以支持多个共振模式,并产生非常窄的线宽。

Etymology / 词源

optical 来自 optic(“视觉的、光学的”),与希腊语 optikos(与“看”相关)有关;cavity 源自拉丁语 cavus(“中空的”),引申为“空腔”。合在一起,optical cavity 字面意思就是“用于光的空腔/腔体”,在现代物理与工程语境中特指能让光发生多次反射并产生共振的结构。

Related Words / 相关词

Literary Works / 文献与著作中的用例

  • Lasers Anthony E. Siegman(经典激光学教材,系统讨论 optical cavity / optical resonator 的模式与稳定性)
  • Optics Eugene Hecht(光学教材中在干涉与谐振相关章节涉及光腔概念)
  • Principles of Lasers Orazio Svelto(激光原理教材,常用“optical cavity”描述激光器谐振腔结构与阈值条件)
  • Optical Coherence and Quantum Optics Leonard Mandel & Emil Wolf(量子光学与相干性讨论中涉及腔结构与模式)
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