A possible gain medium in these devices is neodymium-doped yttrium aluminum garnet.
Examples of these devices named Shiva and Nova were used at the Lawrence Livermore National Laboratory to study inertial confinement fusion. Steven Chu won a Nobel Prize for developing methods to cool and trap atoms using these devices. Short pulses of high power are created in these devices using mode-locking. A possible gain medium in these devices is neodymium-doped yttrium aluminum garnet. These devices require more electrons to be in a higher energy state than a lower energy state, which is called population inversion. For 10 points, name these devices that produce a coherent light beam through stimulated emission of radiation.
Examples of these devices named Shiva and Nova were used at the Lawrence Livermore National Laboratory to study inertial confinement fusion.
lasers [or light amplification by stimulated emission of radiation] 