Smith-Purcell radiation from electrons moving parallel to a grating at oblique incidence to the rulings
Smith-Purcell radiation is produced when a charged particle moves parallel and close to a diffraction grating. We extend previous descriptions of the phenomenon by considering a particle moving parallel to the grating surface at an arbitrary angle with respect to the grating rulings. The problem of calculating the emitted radiation intensity is shown to be linked to a special grating problem involving evanescent incident waves and conical diffraction. Conservation relations are derived applying techniques from electromagnetic grating theory and Smith-Purcell spectra are calculated for some specific cases of practical interest.
Bibliographic Reference: Article: Physical Review E (1996)
Record Number: 199611390 / Last updated on: 1996-12-18
Original language: en
Available languages: en