DOPPLER WIDTH Meaning and
Definition
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Doppler width refers to a measure of the broadening of spectral lines due to the Doppler effect. The Doppler effect is the change in frequency or wavelength of a wave in relation to an observer moving relative to the source. In the context of spectroscopy and atomic physics, it is the phenomenon where the frequency of light shifts when an emitting or absorbing object is in motion relative to the observer.
The Doppler effect causes the frequency of light emitted or absorbed by atoms to change, resulting in a broadening of the spectral lines. Doppler width quantifies this broadening by measuring the spread of frequencies or wavelengths of the spectral lines. It provides information about the velocity distribution and motion of particles or atoms in a gas or medium.
The Doppler width is directly related to the temperature and velocity of the atoms or particles in the medium. At higher temperatures or velocities, the atoms move faster and exhibit a broader Doppler width. Conversely, at lower temperatures or velocities, the atoms move slower, resulting in a narrower Doppler width.
The determination and analysis of Doppler width are crucial in numerous scientific fields, including astrophysics, plasma physics, and molecular physics. It helps researchers understand the properties and behavior of atoms, particles, and gases, as their motion and thermal energy directly contribute to the extent of Doppler broadening.
Common Misspellings for DOPPLER WIDTH
- soppler width
- xoppler width
- coppler width
- foppler width
- roppler width
- eoppler width
- dippler width
- dkppler width
- dlppler width
- dpppler width
- d0ppler width
- d9ppler width
- doopler width
- dolpler width
- do0pler width
- dopoler width
- dopller width
- dop0ler width
- doppker width
- doppper width
Etymology of DOPPLER WIDTH
The term "Doppler width" is derived from the name of Christian Doppler, an Austrian physicist and mathematician who first described the phenomenon of the Doppler effect in 1842. The Doppler effect refers to the change in frequency or wavelength of a wave as observed by an observer moving relative to the source of the wave.
In the context of atomic or molecular spectroscopy, the "Doppler width" refers to the broadening of spectral lines due to the random thermal motion of particles. The term "Doppler width" is used to describe the width of these lines, which is directly related to the temperature of the gas or substance being studied.
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