摘要
在等离子体鞘套中激光成丝形成等离子体通道,该通道可以被等效为内部是低密度等离子体、外层为无限大厚底高密度等离子覆层的等离子体圆柱波导。分析了该模型下的传播特性,重点讨论了各类模式下的特征方程、截止的条件及波导的截止特性。
A plasma channel is generated by a laser beam in plasma sheath.The channel can be equivalent to a plasma cylindrical waveguide with its inner as an underdense plasma surrounded by an outer infinitive large high-density plasma cladding.The propagation characteristics of this model is analyzed.Emphasis is placed on the characteristic equation of different models,the cut-off conditions and the cut-off properties of the waveguide.
出处
《南京邮电大学学报（自然科学版）》
2011年第4期24-28,共5页
Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
基金
国家自然科学基金(60971122)
航空科学基金(2009ZA52008)
江苏省普通高校研究生科研创新计划(CXZZ11_0210)
南京航空航天大学博士学位论文创新与创优基金(BCXJ11_05)资助项目
关键词
等离子体鞘套
等离子体通道
圆柱波导
传播特性
plasma sheath
plasma channel
cylindrical waveguides
propagation properties
