Active Laser Medium
 

* 1.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
English Related Words* absorbing medium
* activated charcoal (activated carbon active carbon)
* active
* active account
* active agent
* active air defense
* active aircraft
* active antenna
* active application
* active area
* active army
* active balance
* active balance of trade
* active ballistic missile defense
* active birth