These devices are used to create MISERs, which are also called nonplanar ring oscillators. An injection signal can be used by a "master" one of these devices to control the frequency of a "slave" one. It's not a QWIP, but another type of these devices contains a semiconductor superlattice with a series of quantum wells and relies on inter-sub-band transitions occurring in each well. A type of these devices contains a noble gas halide which dimerizes when exposed to an electric current. These devices are used to supply energy to a deuterium- tritium pellet to produce a high density plasma in inertial confinement fusion. These devices come in quantum cascade and excime
These devices are used to create MISERs, which are also called nonplanar ring oscillators. An injection signal can be used by a "master" one of these devices to control the frequency of a "slave" one. It's not a QWIP, but another type of these devices contains a semiconductor superlattice with a series of quantum wells and relies on inter-sub-band transitions occurring in each well. A type of these devices contains a noble gas halide which dimerizes when exposed to an electric current. These devices are used to supply energy to a deuterium- tritium pellet to produce a high density plasma in inertial confinement fusion. These devices come in quantum cascade and excimer types, and they contain a resonator cavity that surrounds a gain medium, such as titanium-sapphire or helium-neon. Pumping is used in these devices to put more atoms in the excited state than the ground state, thus producing a population inversion. For 10 points, name these devices that produce light via stimulated emission.