Abstract

We consider “sliding” particles (electrons or ions) which move in vacuum in a potential well at a small distance from a corrugated dielectric surface. We consider a way to stabilize the beam position above the plate, avoiding the bombardment of the plate by the particles. We discuss possible ways to create beams of such “sliding” particles with the desired characteristics. It is proposed to use such “sliding” particles in accelerators and tunable sources of coherent ultraviolet radiation. It is shown, that in principle the laser effect can be observed at rather small currents of ultra-relativistic “sliding” electrons.

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