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单词 Doppler broadening
释义

Definition of Doppler broadening in English:

Doppler broadening

noun
mass nounPhysics
  • The broadening of spectral lines as a result of the different velocities of the emitting atoms giving rise to different Doppler shifts.

    Example sentencesExamples
    • Doppler broadening is due to the distribution of atomic velocities (speed and direction), which each have a Doppler shift with respect to an observer.
    • For atomic spectra in the visible and UV, the limit on resolution is often set by Doppler broadening.
    • Alternatively, they are not optimum for elimination of Doppler broadening.
    • In a low pressure gas, the main source of broadening is Doppler broadening from the thermal motion of the atoms or molecules of the gas.
    • When the driving field is resonant, at a suitable Doppler width, we can get a maximum value of the gain without inversion, which is much larger than that obtained when Doppler broadening is absent.
 
 

Definition of Doppler broadening in US English:

Doppler broadening

noun
Physics
  • The broadening of spectral lines as a result of the different velocities of the emitting atoms giving rise to different Doppler shifts.

    Example sentencesExamples
    • Doppler broadening is due to the distribution of atomic velocities (speed and direction), which each have a Doppler shift with respect to an observer.
    • For atomic spectra in the visible and UV, the limit on resolution is often set by Doppler broadening.
    • In a low pressure gas, the main source of broadening is Doppler broadening from the thermal motion of the atoms or molecules of the gas.
    • Alternatively, they are not optimum for elimination of Doppler broadening.
    • When the driving field is resonant, at a suitable Doppler width, we can get a maximum value of the gain without inversion, which is much larger than that obtained when Doppler broadening is absent.
 
 
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更新时间:2024/12/23 17:56:08