Examples of linewidth

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Both lower and upper transition levels contribute to the linewidth yielding the total uncertainty.
The size of the emitting region for each spectral line in the direction of the spectral dispersion can then be determined by the instrumental linewidth.
So the natural linewidth for this emission can be neglected completely.
The linewidth of the second derivative of a band is smaller than that of the original band.
The useful linewidth range for obtaining structural information is within the dashed lines.
The estimate of the linewidth has been carried out by fitting the spectral distribution of a single harmonic with an analytical profile.
Remarkably different results have been found for both the spectral extension and the linewidth of the harmonic peaks.
The linewidth curves for different durations in the plot are remarkably distinct and converge toward a value smaller than the instrumental function.
Significant improvement in the linewidth of all resonances in both spectral dimensions with the concomitant dramatic improvement in spectral resolution is obtained.
Under ambient conditions, even for single molecules, the expected spectral changes will be completely masked because the homogeneous linewidth of the absorption bands often exceed those spectral changes.
This value is also much smaller compared with the measured linewidth obtained in the experiment although it is much greater than the calculated natural linewidth above.
The last expression is the linewidth of the system.
From
Wikipedia