The Interaction of Light With Matter
There are three types of possible interactions between a system of atoms and light that are of interest:
Read more about this topic: Population Inversion
Famous quotes containing the words interaction, light and/or matter:
“Our rural village life was a purifying, uplifting influence that fortified us against the later impacts of urbanization; Church and State, because they were separated and friendly, had spiritual and ethical standards that were mutually enriching; freedom and discipline, individualism and collectivity, nature and nurture in their interaction promised an ever stronger democracy. I have no illusions that those simpler, happier days can be resurrected.”
—Agnes E. Meyer (1887–1970)
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—Bible: New Testament (RSV)
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—Unknown. Jimmy’s Enlisted; or, The Recruited Collier (l. 1–4)