Electromagnetic interaction between local surface plasmon polaritons and an atmospheric surface wave plasma jet

• Published in: Chinese physics B Vol. 23; no. 3; pp. 404 - 411
• Main Author: 陈兆权 胡东 刘明海 夏广庆 郑晓亮 胡业林 叶秋波 陈明功 祝龙记 胡希伟
• Format: Journal Article
• Language: English
• Published: 01.03.2014
• Subjects: Atmospherics; Electric discharges; Electric fields; Electromagnetic interactions; Plasma (physics); Plasmons; Polaritons; Surface waves; 大气压; 放电装置; 气体压力; 电磁相互作用; 等离子体射流; 等离子体波; 表面波; 表面等离子激元
• ISSN: 1674-1056; 2058-3834; 1741-4199
• DOI: 10.1088/1674-1056/23/3/035202

We analyze the electromagnetic interaction between local surface plasmon polaritons （SPPs） and an atmospheric surface wave plasma jet （ASWPJ） in combination with our designed discharge device. Before discharge, the excitation of the SPPs and the spatial distribution of the enhanced electric field are analyzed. During discharge, the critical breakdown electric field of the gases at atmospheric gas pressure and the surface wave of the SPPs converted into electron plasma waves at resonant points are studied. After discharge, the ionization development process of the ASWPJ is simulated using a two- dimensional fluid model. Our results suggest that the local enhanced electric field of SPPs is merely the precondition of gas breakdown, and the key mechanism in maintaining the discharge development of a low-power ASWPJ is the wave-mode conversion of the local enhanced electric field at the resonant point.