Q:

Material that is unsuitable for use in a LASER lacks which of the following properties?

waelhammad
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2022-10-20
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Material that is unsuitable for use in a LASER lacks which of the following properties?

  1. A metastable excited state
  2. A short-lived ground state
  3. The ability to spontaneously emit radiation
  4. A long-lived ground state
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waelhammad
2022-10-20
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A metastable excited state – that is, one that persists for longer than an excited state normally exists, is required for lasing action.

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