Interaction with atoms

The interaction of an atom and radiation has three processes to analyze. 1) Spontaneous Emission where the classical oscillating charge will radiate spontaneously and an atom can spontaneous transit from an excited higher energy state to a state of lower energy by emitting a photon called quantum of the electromagnetic field. 2) In second state the atom can absorb a photon a beam of radiation and making a move from lower energy state to higher energy sate where the intensity of the applied field is proportional to the rate of absorption. 3) In Stimulated Emission, under the influence of an applied radiation field atoms can also emit photons.

  • Laser atom Interactions
  • Atom-Photon interaction
  • Physics model of atom interaction
  • Isotropic atoms
  • Transitions in multi-electron atoms
  • Interaction with monochromatic radiation

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