Laser Engineering and Applications
Doppler broadening refers to the broadening of spectral lines due to the motion of atoms or molecules relative to an observer. This phenomenon occurs because the frequency of light emitted or absorbed by these particles changes depending on their velocity, causing a spread in the observed wavelengths. It is a key factor in understanding absorption and spontaneous emission processes and plays a crucial role in laser absorption spectroscopy, affecting how we analyze and interpret spectral data.
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