V2EX red-detuned

Red-Detuned

释义 Definition

red-detuned(形容词,常用于物理/光学/原子物理)指“红失谐的、向红端失谐的”:某束光(或激光)的频率略低于某个共振频率(因此对应的波长略长,偏“红”一侧)。常见于激光冷却、原子俘获、光学偶极阱等语境。
(也可写作 red detuned;与 blue-detuned 相对。)

发音 Pronunciation (IPA)

/rd dtund/

例句 Examples

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

By using a red-detuned beam, the experiment creates an attractive optical potential that helps confine the atoms while reducing heating.
通过使用红失谐光束,实验产生了吸引性的光学势,从而有助于束缚原子并降低加热效应。

词源 Etymology

red 表示光谱的红端(波长更长、频率更低);detune 源自 tune(调谐),前缀 de- 表示“偏离/不再处于”,合起来就是“把频率调离共振”。因此 red-detuned 字面义为“向红端偏离共振的(失谐的)”。

相关词Related Words

文学/作品示例 Literary / Notable Works

  • Laser Cooling and Trapping(Harold J. Metcalf & Peter van der Straten):讨论用red-detuned 光实现多普勒冷却与原子俘获。
  • Optics(Eugene Hecht):在光与物质相互作用、频率偏离共振等内容中常见相关表述。
  • Atomic Physics(Christopher Foot):涉及磁光阱、偶极阱等章节中频繁使用 red-detuned 来描述实验设定。
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