Keynote Speaker: Towards Miniaturized Vacuum Tubes for Millimeter and Terahertz Waves

The new generation of highly integrated vacuum devices will benefit from functional electron sources that emit electron bunches with a temporal length of down to 1 ps. Two new laser-modulated emitters for the generation of ultrashort electron bunches are proposed. These will enable an innovative method for fabricating tunable high-frequency vacuum sources up to the THz range.