Production of high-angular-momentum electron beams in laser-plasma interactions

التفاصيل البيبلوغرافية
العنوان: Production of high-angular-momentum electron beams in laser-plasma interactions
المؤلفون: K. Jiang, T. W. Huang, Bin Qiao, Changman Zhou, Sizhong Wu, L. B. Ju, H. Zhang, S. C. Ruan
المصدر: Physical review. E. 95(5-1)
سنة النشر: 2016
مصطلحات موضوعية: Physics, Angular momentum, Resonance, Plasma, Electron, Laser, 01 natural sciences, 010305 fluids & plasmas, law.invention, Amplitude, law, Total angular momentum quantum number, 0103 physical sciences, Cathode ray, Atomic physics, 010306 general physics
الوصف: It was shown that in the interactions of ultra-intense circularly polarized laser pulse with the near-critical plasmas, the angular momentum can be transferred efficiently from the laser beam to electrons through the resonance acceleration process. The transferred angular momentum increases almost linearly with the acceleration time t_{a} when the electrons are resonantly accelerated by the laser field. In addition, it is shown analytically that the averaged angular momentum of electrons is proportional to the laser amplitude a_{L}, and the total angular momentum of the accelerated electron beam is proportional to the square of the laser amplitude a_{L}^{2} for a fixed parameter of n_{e}/n_{c}a_{L}. These results are verified by three-dimensional particle-in-cell simulations. This regime provides an efficient and compact alternative for the production of high angular momentum electron beams, which may have many potential applications in condensed-matter spectroscopy, new electron microscopes, and bright x-ray vortex generation.
تدمد: 2470-0053
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17b17dd13a6268190f473dc256cead92
https://pubmed.ncbi.nlm.nih.gov/28618622
Rights: CLOSED
رقم الانضمام: edsair.doi.dedup.....17b17dd13a6268190f473dc256cead92
قاعدة البيانات: OpenAIRE