The coherent THz Smith-Purcell radiation from a three-dimensional open holes array structure
Source abstract
Abstract
Coherent Smith-Purcell radiation from multiple electron beam excitation in a three-dimensional open holes array structure has been proposed. The electron beam passes through the holes, which can be coupled with each other to enhance surface wave fields, so that the multiple electron beam injection can interact with the surface wave field efficiently. And the Smith-Purcell radiation will be enhanced due to an increasement in dipole oscillations occurring when the electrons pass through the holes. Therefore, a high beam-wave interaction efficiency is yielded and very strong coherent terahertz radiation can be generated. This multi-beam system is expected to provide a favorable way to excite the coherent Smith-Purcell radiation, which would be used to generate terahertz radiation.
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Research context
OpenAlex topics: Gyrotron and Vacuum Electronics Research · Terahertz technology and applications · Microwave Engineering and Waveguides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Electronic Science and Engineering, University of Electronic Science and Technology of China 1 , Chengdu 610054, China
National Key Laboratory of Application Specific Integrated Circuit, Hebei Semiconductor Research Institute 2 , Shijiazhuang 050051, China
College of Communication Engineering, Chongqing University 3 , Chongqing 400044, China
Department of Physics and Astronomy, University of California 4 , Los Angeles, California 90095, USA
Funding
Fundamental Research Funds of the Central Universities of China · National Natural Science Foundation of China
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