Smith–Purcell free electron laser based on a semi-conical resonator

Smith–Purcell free electron laser based on a semi-conical resonator

We investigate a Smith–Purcell free electron laser composed of an electron gun, a semi-conical resonator, a metallic grating and collector. The semi-conical resonator could reflect all Smith–Purcell radiation with emission angle θ, and with random azimuthal angles, back onto the electron beam and ca...

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Veröffentlicht in:Optics communications 2012-03, Vol.285 (6), p.975-979
1. Verfasser: Xianzhu, Meng
Format: Artikel
Sprache:eng
Schlagworte:
Angle of reflection
Coherence
Diffraction gratings
Emission
Free electron laser
Free electron lasers
Gratings (spectra)
Resonators
Semi-conical resonator
Smith–Purcell radiation
Wavelengths
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Zusammenfassung:We investigate a Smith–Purcell free electron laser composed of an electron gun, a semi-conical resonator, a metallic grating and collector. The semi-conical resonator could reflect all Smith–Purcell radiation with emission angle θ, and with random azimuthal angles, back onto the electron beam and causes the electrons to be modulated. Tunable coherent far-infrared Smith–Purcell radiation with a high output peak power at millimeter wavelengths can be generated.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2011.11.100