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Additional
Optical pumping
English Wikipedia - The Free Encyclopedia
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Optical pumping
Optical pumping
is a process in which
light
is used to raise (or "pump")
electrons
from a lower
energy level
in an
atom
or
molecule
to a higher one. It is commonly used in
laser construction
, to
pump
the
active laser medium
so as to achieve
population inversion
. The technique was developed by 1966
Nobel Prize
winner
Alfred Kastler
in the early 1950s.
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