Cm. Tang et al., FREE-ELECTRON MICRO-LASERS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 358(1-3), 1995, pp. 7-10
The electron optical properties of microscopic gated field emitter arr
ays (FEA) are an ideal match to the electron beam requirements of free
electron micro-lasers. Projected performance characteristics of the b
eam generators based on the FEA principle are reviewed and results fro
m recent experiments with a single micro-beam filament are summarized.
The latter are shown to support the claim that free electron micro-la
sers based on either the Cherenkov or the Smith-Purcell interaction me
chanism are a practical possibility.