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Topic: How do photons create a spectral line?  (Read 1361 times)

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Offline Ritik

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How do photons create a spectral line?
« on: April 16, 2014, 09:59:36 AM »
How do photons create a spectral line? And why are they visible as lines?
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Offline Corribus

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Re: How do photons create a spectral line?
« Reply #1 on: April 16, 2014, 10:07:48 AM »
Pretty vague question.  They are either absorbed or emitted by your sample. They aren't really "lines", btw - they have a finite width. For atoms they can be pretty sharp but they actually have (typically) a gaussian or lorentzian shape.
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What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman
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