Encyclopedia > Active laser medium

  Article Content

Active laser medium

Active laser medium: Within a laser, the material that emits coherent radiation or exhibits gain as the result of electronic or molecular transitions to a lower energy state or states, from a higher energy state or states to which it had been previously stimulated.

Note: Examples of active laser media include certain crystals, gases, glasses, liquids, and semiconductors. Synonym laser medium.

Source: from Federal Standard 1037C

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
1804 in literature

... Daughter[?] - Mary Julia Young[?] The Nine Days' Wonder[?] - Mary Meeke[?] Oberman[?] - Etienne Senancour[?] Popular Tales[?] - Maria Edgeworth The Ruins of Tivoli[?] - ...