Oscillators – Molecular or particle resonant type
Patent
1977-02-22
1978-10-17
Sikes, William L.
Oscillators
Molecular or particle resonant type
331 945PE, H01S 322
Patent
active
041211766
ABSTRACT:
Method and apparatus for generating electromagnetic energy by creating a population inversion between upper and lower energy levels in a target substance. The population inversion is maintained by exciting the individual particles to a short lived resonant negative ion-like state and then to a particular neutral state at a rate greater than the total rate of decay from the resonant negative ion-like state to the various lower energy levels. Particles in the resonant negative ion-like state decay quickly to at least two energy states at differential rates, with decay to the upper energy state occurring at a rate sufficiently greater than decay to the lower energy state to ensure population inversion. Atoms or molecules in the upper state decay to the lower state, emitting coherent radiation of a predetermined frequency and wave length.
Excitation of the particles to the short lived resonant negative ion-like state is produced by irradiating the target substance with a beam of electrons having an energy distribution centered about a resonant energy at which the individual particles respond, the energy distribution having a width of about 0.25 to about 5.0 eV. The power output may be varied by varying the current density of the electron beam, and the energy output may be either continuous or pulsed by controlling the application of the incident electron beam in a corresponding fashion.
REFERENCES:
patent: 3789319 (1974-01-01), Rhodes
Golden David E.
Ormonde Stephan M.
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