V2EX blue-detuned

Blue-Detuned

定义 Definition

blue-detuned(蓝失谐的):在光学/原子物理中,指激光(或光场)的频率高于某个原子/分子跃迁的共振频率(等价地:波长更短、偏“蓝”),即相对共振呈正失谐。常用于描述光偶极势、激光冷却与原子俘获等情境。(在不同语境下也可泛指“向高频方向失谐”。)

发音 Pronunciation (IPA)

/blu dtjund/

例句 Examples

The laser is blue-detuned from the atomic transition.
这束激光相对于该原子跃迁是蓝失谐的。

In a blue-detuned optical trap, atoms are pushed toward regions of lower intensity, which can help reduce photon scattering.
在蓝失谐的光学陷阱中,原子会被推向低光强区域,这有助于降低光子散射。

词源 Etymology

该词由 blue(蓝色) + detuned(失谐的) 组成:

  • blue 在物理中常借指“更高频/更短波长”(类比蓝移)。
  • detune 来自 *de-*(离开、偏离)+ tune(调谐),表示“偏离共振频率进行调谐”。
    合起来即“向更高频方向偏离共振的(蓝失谐的)”。

相词 Related Words

文献与作品 Literary / Notable Works

  • Laser Cooling and Trapping(Harold J. Metcalf & Peter van der Straten)讨论红/蓝失谐在冷却与俘获中的作用与物理图像。
  • Atom-Photon Interactions: Basic Processes and Applications(Claude Cohen-Tannoudji, Jacques Dupont-Roc, Gilbert Grynberg)涵盖失谐、光偶极势等概念(常出现“blue-detuned/blue detuning”表述)。
  • Optical Dipole Traps for Neutral Atoms(Rudolf Grimm, Matthias Weidemüller, Yurii B. Ovchinnikov,综述论文)系统讲述红/蓝失谐偶极阱与相关实验实现。
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