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Old 13-11-2010, 02:33 PM
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sjastro
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Quote:
Originally Posted by CraigS View Post
This absorption spectrum and emission spectrum stuff is very interesting.

I was reading up in Wiki (its Ok 'cause Alex now uses it to explain 'sputtering' ), about infrared spectroscopy.

Just looking at the cool animated models on the wiki page makes me realise just how complex it really is.

There is a relationship between emission and absorption spectra, huh ?
The relationship between absorption and emission can be described by the following steps.

(1) Atom or molecule absorbs photons.
(2) Electrons are pushed into higher energy levels. Atom or molecule is in "excited state".
(3) Electrons move back to original energy levels, atom or molecule moves back to unexcited or ground state.
(4) Photons are emitted during return to ground state.

Regards

Steven
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