DOUBLE-FREQUENCY LASER ELECTRON BEAM DEVICE FOR GENERATING PICOSECOND PULSES Russian patent published in 2011 - IPC H01S5/42 H01J31/50 

FIELD: physics.

SUBSTANCE: laser electron beam device includes an electron gun, electron beam focusing and deflecting systems and a laser screen. The screen includes a plane-parallel semiconductor plate with reflecting coatings on its surface. The device also includes a microwave deflecting system between the electron gun and the deflecting system, and a slot mask made from electron-absorbing material placed on the laser screen on the side of the electron beam. The semiconductor plate is made from semiconductor materials with different wavelength of the generated radiation in regions lying on different sides of an arbitrary bridge of the slot mask.

EFFECT: possibility of generating synchronised picosecond laser pulses at two wavelengths with possibility of scanning the laser radiation within limits determined by the size of the laser screen.

1 dwg