LASER ELECTRON-BEAM TUBE Russian patent published in 2014 - IPC H01S5/42 H01J31/50 

FIELD: physics.

SUBSTANCE: invention relates to quantum electronics and electronic engineering and can be used in devices with a scanning light beam. The laser electron-beam tube is in form of a vacuum flask with an exit optical window and has an electron-optical axis along which are series-arranged an electron source, electrode system for forming an electron beam and an active plate with a highly reflective coating on its first surface, which is mounted on a cold-conducting substrate. Electron-beam focusing and deflecting systems are placed outside the tube. The flask houses reflecting elements in form of a concave reflector with an optical axis and a flat reflector which, along with the highly reflective coating, form the optical resonator of the laser electron-tube beam with the active plate inside said resonator. The optical window of the flask is a flat reflector with a reflecting coating on the inner surface, which is highly reflective on part of said surface and partially transmitting on the other part of the surface for radiation of the active plate.

EFFECT: improved directivity and high power of the scanning laser beam.

12 cl, 3 dwg