字谜游戏
发表于 2025-3-27 00:45:40
Introduction,gth range from the far infrared up to the .-range. The emission spectrum in such a periodic structure is quasimonochromatic due to a constructive interference of radiation fields generated by a charged particle on each element of the structure.
radiograph
发表于 2025-3-27 04:49:28
Basic Characteristics of Electromagnetic Radiation,h a negligibly small angular divergence, the characteristics of which (intensity, polarization, position of maximum in spectrum, temporal modulation, etc.) are possible to adjust in a rather large range.
放肆的你
发表于 2025-3-27 07:04:04
Parametric X-ray Radiation,ated with frequencies in an optical range and lower close to the direction of a specular reflection. Such a radiation mechanism can be interpreted as a process of the relativistic charge electric field scattering by a surface of the conducting target in a full analogy with a process of electromagnet
Incisor
发表于 2025-3-27 11:22:47
,Smith–Purcell Radiation,d particle passing through the medium deforms (polarizes) the electron shells of the medium atoms. It is the dynamic polarization of the medium atoms that becomes a cause for electromagnetic radiation. If a relativistic charged particle flies in a vacuum close to any medium at the distance
Genetics
发表于 2025-3-27 15:27:52
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道学气
发表于 2025-3-27 20:19:41
Conclusion,es” the information about the parameters of the initial electron beam. Electrons moving in a vacuum close to an optical grating or trough the laser flash, have lost an energy only through the radiative mechanisms (in this case through the Smith–Purcell radiation or BCS process), whereas other dissip
obtuse
发表于 2025-3-27 23:20:18
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套索
发表于 2025-3-28 05:48:10
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FORGO
发表于 2025-3-28 09:47:04
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AGGER
发表于 2025-3-28 11:56:14
Radiation of Electrons in the Field of Intense Laser Wave,y—neglecting terms ., i.e. in the nonrelativistic case). If an initial linearly polarized wave propagates along the axis . and the electric vector oscillation plane coincides with the plane .0., then the free charge . also oscillates in this plane under the influence of an oscillating force . = ... cos ...