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physical phenomena > process > physical process > optical process > radiation modification > line broadening > natural line broadening

natural line broadening comparison table

Subject	is a kind of	has definition
line broadening	radiation modification	Increase in the range of wavelengths in which some characteristic emission or absorption occurs.
natural line broadening	line broadening	Line broadening resulting from the fact that excited levels have certain mean lives, and these mean lives, by virtue of the uncertainty principle, imply a spread in the energy values.

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