Linked from

The 17 pages that link to Population inversion, each with the reason it gives.

• LaserRelated: It lets stimulated emission exceed absorption in the laser medium.

• Stimulated emissionRelated: It lets stimulated emission exceed absorption in a medium.

• Hydrogen maserRelated: The selected hydrogen atoms provide the excitation needed for microwave gain.

• MaserRelated: It lets stimulated emission exceed absorption in the maser's active medium.

• Einstein coefficientsRelated: It lets stimulated emission exceed absorption and enables optical gain.

• Excimer laserRelated: Excimer formation creates the excited-state population needed for optical gain.

• Ruby laserRelated: The ruby crystal must reach this condition for stimulated emission to amplify light.

• Helium–neon laserRelated: The discharge and helium-to-neon transfer create the excited neon population needed for laser gain.

• Solid-state laserRelated: The laser medium must be inverted so stimulated emission exceeds absorption.

• Alexander ProkhorovRelated: Prokhorov and Basov explored ways to create this condition for microwave amplification.

• Gas laserRelated: Excitation must create this condition in the gas for laser amplification.

• Astrophysical maserBroader topic: The inversion makes stimulated emission exceed absorption in the masing gas.

• Carbon-dioxide laserRelated: The discharge creates the imbalance needed for stimulated emission in carbon dioxide.

• Charles H. TownesRelated: A population inversion lets a maser amplify radiation rather than absorb it.

• Nikolay BasovBroader topic: Basov and Prokhorov identified it as a requirement for amplifying radiation by stimulated emission.

• MegamaserRelated: Molecular transitions require this unusual excitation pattern to amplify radiation.

• Chemical oxygen–iodine laserRelated: The oxygen-to-iodine transfer creates the inversion needed for stimulated emission.