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• McCumber relation
  ...McCumber theory) refers to the effective cross-sections of absorption and emission of light in the physics of [[solid-state laser]]s D.E.McCumber. Einstein relations connecting broadband emission and absorption spectra. [[w:Physical Review B|PRB]] ''' 136''' (4A), 954&nd
  16 KB (2,521 words) - 15:13, 17 June 2020
• Active mirror
  ...BouncingRay.png|right|thumb|Fig.3. Bouncing ray of [[Amplified spontaneous emission|ASE]] in a disk laser]] ...power of pump available, but also by overheating, [[amplified spontaneous emission]] (ASE) and
  15 KB (2,320 words) - 14:31, 20 June 2013
• Gain medium
  ...tical [[gain]] within a [[laser]]. The gain results from the [[stimulated emission]] of nuclear, electronic or molecular transitions to a lower energy state f ...agnetic radiation)|absorption]] and [[Emission (electromagnetic radiation)|emission]] at frequencies <math>~\omega_{\rm p}~</math> and <math>~\omega_{\rm s}~<
  9 KB (1,441 words) - 14:33, 20 June 2013
• Quantum decay
  Often the decay refers to the emission of some boson (usually a photon) by an excited (metastable) state Since century 20, the emission of light and spontaneous transformations of atomic nuclei are interpreted as quantum decay.
  3 KB (518 words) - 18:44, 30 July 2019
• Pu-240
  Energy at the spontaneous alpha-decay: 5.25575 [[MeV]] ==Spontaneous decay chain==
  3 KB (341 words) - 20:23, 20 July 2022