MOLECULAR OR PARTICLE RESONANT TYPE (E.G., MASER):
(under the class definition) Subject matter wherein the oscillator consists of (a) a medium which may be solid, liquid, or gaseous, comprising particles, molecules, or atoms; (b) means including a source of energy for setting the particles, molecules, or atoms into a state of vibration or oscillation; and (c) means to abstract electromagnetic wave energy produced by the vibration or oscillation of the particles, molecules, or atoms. The vibration or oscillation is that of the particle, molecule, or atom itself and is not due to the translational motion of the particle, molecule, or atom as a whole.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2, for automatic frequency stabilized oscillators utilizing a frequency discriminator of the molecular resonant type.
78, for electrical noise or random wave generators wherein the translatory motions of charged particles or molecules are utilized to generate oscillations.
SEE OR SEARCH CLASS
250, Radiant Energy,
552, for devices for producing and propagating a unidirectional stream of neutral molecules or atoms through vacuum, usually at thermal velocity and including means to excite the molecules or atoms at a resonant frequency.
332, Modulators, appropriate subclasses for maser type modulators. 372, Coherent Light Generators, appropriate subclasses for optical (e.g., laser) oscillators.
