V2EX pockels effect

Pockels Effect

定义 Definition

Pockels effect(波克尔斯效应)指某些非中心对称晶体在外加电场作用下,其折射率发生与电场强度成线性关系的变化(即线性电光效应)。它常用于电光调制器、Q 开关、光学相位/强度调制等。另有相关的 Kerr effect 为二次(与电场平方成正比)电光效应。

发音 Pronunciation (IPA)

/pklz fkt/

例句 Examples

The Pockels effect lets us change a crystal’s refractive index with an electric field.
波克尔斯效应使我们能够用电场改变晶体的折射率。

In a lithium niobate modulator, the Pockels effect converts a voltage signal into an optical phase shift, enabling high-speed data transmission.
在铌酸锂调制器中,波克尔斯效应把电压信号转换为光学相位变化,从而实现高速数据传输。

词源 Etymology

该术语以德国物理学家 Friedrich Carl Alwin Pockels(弗里德里希卡尔阿尔温波克尔斯)命名;“effect”意为“效应”。名称强调这是由波克尔斯研究并系统描述的线性电光现象。

相关词 Related Words

文学与典籍 Literary Works

  • Fundamentals of Photonics(Saleh & Teich,《光子学基础》):电光效应与电光调制章节常讨论 Pockels effect。
  • Photonics(Amnon Yariv,《光子学》):电光调制器与波导器件中频繁出现该术语。
  • Principles of Optics(Born & Wolf,《光学原理》):在晶体光学/电光现象相关内容中提及。
  • Optics(Eugene Hecht,《光学》):在电光效应与调制应用的教学性叙述中出现。
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