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Submillimeter Wave Generation through Stimulated Scattering with an Intense Relativistic Electron Beam and Zero Frequency Pump

We report a configuration of pulsed, intense, relativistic electron beam and rippled magnetic field which shows promise for production of electromagnetic energy in the wavelength range below 1 mm. The technique has been studied theoretically [1] and experimentally [2] in the microwave regime and a similar mechanism has been proposed as a means of generating shorter wavelength radiation [3]. Our apparatus has produced radiation at wavelengths in the 1-2 mm range at power levels of roughly 50 kW.