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optical pumping
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optical pumping
noun Physics, Optics.
a method for increasing the number of atoms or molecules occupying higher energy levels by irradiating them with light of the proper frequencies to raise them to those levels.
Origin:
1950–55
1950–55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
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Optical pumping
is always a great word to know.
So is gas. Does it mean:
| the amount of a given fissionable material necessary to sustain a chain reaction at a constant rate |
| a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid |
Encyclopedia Britannica
Encyclopedia
optical pumping
in physics, the use of light energy to raise the atoms of a system from one energy level to another. A system may consist of atoms having a random orientation of their individual magnetic fields. When optically pumped, the atoms will undergo a realignment of individual magnetic fields with respect to the direction of the light beam; that is, there will be a rearrangement of magnetic energy levels; and, in some cases, the bulk of the atoms will be oriented to generate a magnetic field throughout the system
Learn more about optical pumping with a free trial on Britannica.com.
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Word Dynamo Rating For Optical pumping
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