Optical beam-energy modulators

Four devices are discussed. In each of these, electromagnetic waves of wavelength /spl lambda/ (which may be in the optical range) are to be used to modulate the energy of extreme relativistic charged particle beams on a scale of /spl gsim//spl lambda//2. The devices are: (1) two-wave modulators; th...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1997-02, Vol.33 (2), p.138-146
Main Author: Csonka, P.L.
Format: Article
Language:English
Subjects:
Amplitude modulation
Beam optics
Charged-particle beams
Electromagnetic scattering
Electromagnetism
electron and ion optics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Klystrons
Optical beams
Optical devices
Optical modulation
Optical resonators
Particle beam optics
Particle beams
Physics
Ultraviolet sources
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Summary:Four devices are discussed. In each of these, electromagnetic waves of wavelength /spl lambda/ (which may be in the optical range) are to be used to modulate the energy of extreme relativistic charged particle beams on a scale of /spl gsim//spl lambda//2. The devices are: (1) two-wave modulators; the well-known optical klystron is a special case and has been used in the past for energy modulation. The other three are proposed as appropriate alternatives, depending on the circumstances: (2) vacuum modulator; it is the simplest in construction, and its energy modulation amplitude is essentially the function of only the power carried by the wave (e.g., laser power) and not the geometry nor /spl lambda/; (3) Cherenkov modulator; and (4) resonator energy modulator. Their capabilities, including the energy modulation amplitude, and efficiency, are compared.
ISSN:0018-9197
1558-1713
DOI:10.1109/3.552253