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 medium...
1. Simulation of Smith-Purcell radiation from compact terahertz source; 紧凑型THz源的史密斯-帕塞尔辐射模拟(英文)2. Smith-Purcell radiation(SPR) from prebunched electron bunches moving in parallel with the surface of periodic ideal metal grating is analyzed. 研究了预群聚电子束团沿周期性理想金属...
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...
电子科技大学UNIVERSITYOFELECTRONICSCIENCEANDTECHNOLOGYOFCHINA专业学位硕士学位论文MASTERTHESISFORPROFESSIONALDEGREE论文题目太赫兹Smith-Purcell超辐射的模拟与实验研究专业学位类别工程硕士学号201522040904作者姓名**恒指导教师胡旻教授分类号密级UDC注1学位论文太赫兹Smith-Purcell超辐射的模拟与实验研究(题名和副题名)操岳恒(作者...
An investigation of Smith-Purcell radiation is carried out with a three-dimensional particle-in-cell simulation. The simulation model consists of a rectangular grating with limited length and width, which is driven by a single electron bunch, a train of periodic bunches, and a continuous beam. ...
In particular, for a given observation direction two wavelengths are emitted instead of one wavelength of the standard Smith-Purcell effect. For a rough surface we show that the main contribution to the radiation intensity is given by surface polaritons induced on the interface between two media. ...
Smith-Purcell radiation from a narrow tape helix 来自 Semantic Scholar 喜欢 0 阅读量: 27 作者:AR Neureuther,R Mittra 摘要: A theoretical investigation of a narrow tape helix excited by a modulated electron beam gives quantitative results which can be used to estimate the strengths of ...
The Smith Purcell effect, in which a beam of electrons passes close to a conducting grating and induces electromagnetic radiation from the grating surface, can be used as a source of THz radiation. A grating composed of negative index metamaterial (NIM) enhances the output of the Smith Purcell...
We present experimental results on Smith--Purcell radiation. Our primary interest was in the measurement of radiation angular distribution, output power, and spectral content. The variations of the angular distribution and the output power were shown for different electron-beam voltages and currents. ...
Smithu2013Purcell radiation in the terahertz regime using charged particle beams from laseru2013matter interactions We report on the experimental observation of Smithu2013Purcell (SP) radiation generation by charged particle beam from laseru2013matter interactions. High-......