Smith-Purcell radiation from electrons moving parallel to a gratingat oblique incidence to the rulings

Autor:	J.-M. Salomé, Olivier Haeberlé, N. Maene, P. Rullhusen
Rok vydání:	1997
Předmět:	Diffraction Physics Holographic grating business.industry Guided-mode resonance Physics::Optics Grating Charged particle law.invention Ultrasonic grating Optics law Blazed grating Physics::Atomic Physics business Diffraction grating
Zdroj:	Physical Review E. 55:4675-4683
ISSN:	1095-3787 1063-651X
DOI:	10.1103/physreve.55.4675
Popis:	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 by applying techniques from electromagnetic grating theory, and Smith-Purcell spectra are calculated for some specific cases of practical interest.
Databáze:	OpenAIRE
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