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[IEEE 2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT) - Chengdu, China (2018.5.7-2018.5.11)] 2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT) - Multi-Color Coherent Smith-Purcell Radiation with Controllable Direction from 2D Rectangular Sub-Wavelength Hole Array
摘要： We proposed a multi-color Smith-Purcell radiation source with controllable emission direction by using a sheet free-electron beam to drive the two-dimensional rectangular sub-wavelength hole array. Each hole is an electromagnetic wave oscillating and radiating unit with specified frequencies. The coherent radiation is generated when the radiation from all units constructively interfere. By adjusting the arrangement of the sub-wavelength hole array, the coherent radiation direction could be steered in the three dimensional space.
关键词： terahertz source,sub-wavelength hole array,free-electron beam,Smith-Purcell radiation,coherent radiation
更新于2025-09-04 15:30:14
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A micro-scale plasma spectrometer for space and plasma edge applications (invited)
摘要： A plasma spectrometer design based on advances in lithography and microchip stacking technologies is described. A series of curved plate energy analyzers, with an integrated collimator, is etched into a silicon wafer. Tests of spectrometer elements, the energy analyzer and collimator, were performed with a 5 keV electron beam. The measured collimator transmission and energy selectivity were in good agreement with design targets. A single wafer element could be used as a plasma processing or fusion first wall diagnostic.
关键词： electron beam,microchip stacking,silicon wafer,plasma processing,fusion first wall diagnostic,lithography,plasma spectrometer,collimator,energy analyzer
更新于2025-09-04 15:30:14