Population Inversion - The Interaction of Light With Matter

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:

    Here is this vast, savage, howling mother of ours, Nature, lying all around, with such beauty, and such affection for her children, as the leopard; and yet we are so early weaned from her breast to society, to that culture which is exclusively an interaction of man on man,—a sort of breeding in and in, which produces at most a merely English nobility, a civilization destined to have a speedy limit.
    Henry David Thoreau (1817–1862)

    What is love itself,
    Even though it be the lightest of light love,
    But dreams that hurry from beyond the world
    To make low laughter more than meat and drink,
    Though it but set us sighing?
    William Butler Yeats (1865–1939)

    But, though light-headed man forget,
    Remembering Matter pays her debt:
    Still, through her motes and masses, draw
    Electric thrills and ties of Law,
    Which bind the strengths of Nature wild
    To the conscience of the child.
    Ralph Waldo Emerson (1803–1882)