Population Inversion
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population inversion

The condition that occurs when a material is radiated with another material at a certain wavelength, causing electrons to jump to a higher orbit (higher shell). When the electrons return to their ground state, they spontaneously emit a photon. Population inversion is the reason a laser works. The spontaneous emission of photons is amplified by mirrors causing a chain reaction and further stimulation of the excited atoms to release photons. See laser.

population inversion [‚päp·yə′lā·shən in‚vər·zhən]

(atomic physics)

The condition in which a higher energy state in an atomic system is more heavily populated with electrons than a lower energy state of the same system.

Population Inversion

in physics, a state of a substance in which the higher energy levels of the constituent particles (such as atoms or molecules) are more “populated” by particles than are the lower levels. Under ordinary conditions (at thermal equilibrium) the inverse relation exists: there are fewer particles at the higher levels than at lower levels.

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No references found			Independent economists believe the government must broaden resource distribution base by encompassing disparities like human development index, inverse population density and revenue generation by a particular province in factors that determine how much money will go to a federating unit. High time to compensate Balochistan by Balochistan Times (Baluchistan Province, Pakistan)			inverse hyperbolic secant inverse hyperbolic sine inverse hyperbolic tangent inverse image inverse implication inverse kinematics inverse latitude inverse limiter inverse logarithm inverse magnetostriction Inverse Magnetron Gauge inverse matrix inverse Mercator chart inverse Mercator projection inverse micelle inverse multiplexor inverse network inverse neutral telegraph transmission Inverse of a Matrix Inverse of a Theorem inverse operator inverse parallel inverse peak voltage inverse piezoelectric effect inverse points Inverse population inverse probability principle inverse problem inverse ranks inverse ratio inverse relation inverse rhumb line inverse scattering theory inverse secant inverse segregation inverse sine inverse Stark effect inverse substitution inverse tangent Inverse Trigonometric Function inverse variation inverse video inverse voltage inverse Zeeman effect inverse-mapping theorem inverse-square law Inversely Proportional Quantities Inversion inversion axis Inversion Curve inversion heterozygote			Inverse Multiplexing for ATM Inverse Multiplexing over ATM Inverse multiplexor Inverse multiplexor Inverse NAND Flash Translation Layer Inverse Narrow Width Effect inverse network inverse neutral telegraph transmission Inverse of a matrix Inverse of a Theorem Inverse of Nontangential Proper Part Inverse of Tangential proper part Inverse operation Inverse operation Inverse operator Inverse operator Inverse order Inverse parallel Inverse parallel Inverse parallel inverse peak voltage Inverse Perspective Mapping Inverse photoemission Inverse photoemission spectroscopy Inverse Photopyroelectric inverse piezoelectric effect Inverse Planning by Simulated Annealing Inverse points Inverse points Inverse polymerase chain reaction Inverse population Inverse Positioning System Inverse Power Law Inverse Probability of Censoring Weighted Inverse Probability of Treatment Weighted inverse probability principle Inverse problem Inverse Problems, Design and Optimization Symposium Inverse Profile Check Inverse proportion Inverse proportion inverse proportions Inverse Quadratic Eigenvalue Problem Inverse Quantization Inverse Quantization and Inverse Zig-Zag Ordering Inverse Radon Transform inverse ranks inverse ratio inverse ratio Inverse Ratio Ventilation inverse ratios Inverse relation Inverse relationship Inverse Residue Number System Transform inverse rhumb line Inverse scattering theory Inverse scattering transform

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Population Inversion (redirected from Inverse population)

Population Inversion
(redirected from Inverse population)