Forming of Ultrashort Electromagnetic Clusters by Two-Stream Superheterodyne Free Electron Lasers
نویسندگان
چکیده
منابع مشابه
Ultrashort ultraviolet free-electron lasers.
In this work we combine elements of chirped pulse amplification (CPA) techniques, now familiar in solid-state lasers, with an amplifier based upon a seeded free-electron laser (FEL). The resulting device would produce amplified pulses of unprecedented brevity at wavelengths shorter than can be currently obtained by any tunable laser system. We use a subharmonically seeded FEL to illustrate the ...
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Two parallel, relativistic electron streams with different velocities support unstable, exponentially growing space-charge waves, and efficient electron bunching may be achieved in the submillimeter wavelength range. Injection of the prebunched streams into a static, periodic (wiggler) magnetic field enhances the intensity of the parametrically excited, back-scattered electromagnetic wave. Calc...
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A relativistic theory for two-stream free electron laser (FEL) with a one-dimensional helical wiggler and ion-channel guiding in the presence of self-fields are presented. A dispersion relation (DR) which includes coupling between the electromagnetic and the electrostatic waves is derived from a fluid model, with all of the relativistic terms related to the transverse wiggler motion. This DR is...
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PACS. 61.10.-i – X-ray diffraction and scattering. PACS. 32.80.-t – Photon interactions with atoms. PACS. 36.40.-c – Atomic and molecular clusters. Abstract. – The ingenious idea of single molecule imaging by hard x-ray Free Electron Laser (X-FEL) pulses was recently proposed by Neutze et al. [1]. However, in their numerical modelling of the Coulomb explosion several interactions were neglected...
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Abstrucf-A detailed analysis of the electroniagnetic standing wave wiggler for free-electron lasers (FEL’s) is conducted for both circular and linear wiggler polarizations, following a single-particle approach. After determination of the unperturbed electron orbits in the wiggler field, the single-particle spontaneous emission spectrum and subsequently the gain in the low gain Compton regime (u...
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ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2017
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.131.213