Smith-Purcell radiation is produced when a charged particle moves close and parallel to a diffraction grating. Calculation of Smith-Purcell spectra is therefore linked to a special grating problem, involving incident evanescent waves describing the field of the moving electron. For large period ...
SMITH-PURCELL RADIATION FROM A CHARGE MOVING ABOVE AFINITE-LENGTH GRATING ∗A. S. Kesar, S. Korbly, R. J. Temkin, MIT/PSFC, Cambridge, MA, U.S.A.M. Hess, IUCF, Bloomington, IN, U.S.A.AbstractSmith-Purcell radiation (SPR), generated by an electronbeam traveling above a grating...
As it was noted before, the transition radiation is a manifestation of so-called “polarization mechanism of radiation”, in which the field of a charged particle passing through the medium deforms (polarizes) the electron shells of the medium atoms. It is the dynamic polarization of the mediu...
TERAHERTZSMITH-PURCELLSUPERRADIATION AMasterThesisSubmittedto UniversityofElectronicScienceandTechnologyofChina Discipline:MasterofEngineering Author:CaoYueheng Supervisor:Prof.HuMin School:SchoolofPhysicalElectronics 摘要 I 摘要 太赫兹(Terahertz,THz)波段的频率范围在100GHz与10THz之间,波长介于 ...
采用积分方法分析了线电荷串,沿周期性理想金属光栅表面平行移动时产生的史密斯帕塞尔辐射。 The) Smith-Purcell radiation characteristic is analyzed from a train of line charges moving parallel to a ...
Smith–Purcell radiationfree electron laserquasi optical resonatorA novel Smith–Purcell (S–P) free electron laser composed of an electron gun, a semi-elliptical resonator, a metallic reflecting grating and a collector, is presented for the first time. This paper studies the characteristics of this...
Smith-Purcell radiation from concave dotted gratings We present the first-principles theory of Smith-Purcell effect from the concave dotted grating consisting of bent chains of separated micro- or nanoparticles... D. Yu. SergeevaA. A. TishchenkoA. S. AryshevM. N. Strikhanov - 《Journal of ...
Influence of the Smith-Purcell Radiation on Electron Beam in DROdoi:10.1615/TelecomRadEng.v68.i3.20The action of the Smith-Purcell radiation (SPR) on the electron beam in devices of diffraction radiation oscillator (DRO) type is investigated theoretically. It is shown that the SPR field exerts...
A theoretical analysis of Smith-Purcell radiation at very high energies is presented. The energy per unit frequency and solid angle is expressed in closed form as a function of the grating geometry, beam energy, and viewing angles. A certain choice of grating geometry is shown to optimize the...
A quantum mechanical analysis of Smith–Purcell free-electron lasersSmith-Purcell radiationFree-electron lasersThe paper presents a quantum mechanical treatment for analyzing the Smith鈥揚urcell radiation generated by charged particles passing over a periodic conducting structure. In our theoretical model, ...