V2EX retardance

Retardance

定义 Definition

retardance(光学)指延迟量/相位延迟:当光通过双折射材料(如波片)时,不同偏振分量传播速度不同而产生的相位差,常用单位为弧度或以等效光程差表示。

发音 Pronunciation (IPA)

/rtrdns/

例句 Examples

The wave plate has a retardance of 90 degrees.
这片波片的延迟量是90度。

By rotating the crystal, the experimenter can tune the retardance to control the polarization state of the transmitted beam.
通过旋转晶体,实验者可以调节延迟量,从而控制透射光束的偏振状态。

词源 Etymology

retardance 来自动词 retard(“使变慢、延缓”)加名词后缀 -ance,字面含义是“延缓的程度”。在光学中,这种“延缓”专指某一偏振分量相对另一分量在相位上的“落后”,因此引申为相位延迟

相关词 Related Words

文学与著作中的用例 Literary Works

  • Principles of Optics(Max Born & Emil Wolf)在偏振光学与相位延迟/波片讨论中使用 retardance
  • Optics(Eugene Hecht)介绍波片、偏振器件时常以 retardance 表征器件性能。
  • Polarized Light(Dennis H. Goldstein)系统讨论偏振测量与器件参数时频繁出现 retardance
  • Field Guide to Polarization(Edward Collett / SPIE 系列相关书目)在偏振元件参数化与工程应用中使用 retardance
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