通信与信息技术Issue(3)：48-50,67,4.
太赫兹波在时变等离子体中的频谱变化
Spectrum changes of terahertz waves in time-varying plasma
摘要
Abstract
When a hypersonic aircraft flies in near ground space,the air around the aircraft is ionized to produce plasma.The plasma around the aircraft causes electromagnetic waves to reflect and attenuate,making it impossible for the aircraft's receiver to receive exter-nal signals,thus forming a"blackout"phenomenon.The propagation of terahertz waves in plasma is of great significance in addressing this issue.Due to the temporal variation of electron density in plasma,terahertz pulses in plasma with different electron density rise times and maximum electron density values are calculated by the numerical method.The results reveal the impact of rapidly generated plasma on the terahertz wave spectrum.It is indicated that when the rise time of the electron density is less than or equal to the terahertz wave pe-riod,the time-varying characteristics of the rapidly excited plasma is significant,causing the phenomenon of terahertz wave spectrum changes.关键词
时变等离子体/太赫兹波/电子密度/频谱变化Key words
Time-varying plasma/Terahertz wave/Electron density/Spectrum changes分类
数理科学引用本文复制引用
刘兴鹏,雷婷,张松,邓林..太赫兹波在时变等离子体中的频谱变化[J].通信与信息技术,2026,(3):48-50,67,4.基金项目
成都工业学院国家级大学生创新创业训练计划立项项目(项目编号:202511116012X （）
项目编号:202511116013X)成都工业学院教学改革与质量提升工程项目(项目编号:2025XQGJ004) （项目编号:2025XQGJ004）
