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Differentiate between spontaneous and stimulated emission.
written 5.3 years ago by gravatar for teamques10 teamques10 ★ 65k •   modified 4.1 years ago
advanced engineering physics
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written 5.3 years ago by gravatar for teamques10 teamques10 ★ 65k
SR No Spontaneous emission Stimulated emission
1 The transition of an electron from the excited state to the ground state happens as a result of the natural tendency of the electron without the action of any external agent. The radiation produced as a result of such transitions is called as …

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written 5.3 years ago by gravatar for teamques10 teamques10 ★ 65k

SPONTANEOUS EMISSION

  • It is a natural process.
  • Can not be controlled.
  • No multiplication of photons takes place.
  • Not useful for LASER.

STIMULATED EMISSION.

  • Artificial, induced process.

  • Can be controlled effectively.

  • Multiplication of photons takes place.

  • Essential for LASER.

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