Observation and application of novel plasma phenomena induced in state of negative refractive index

点击翻译按钮获取中文摘要

We applied metamaterials, whose concepts and functions have been extensively explored for these years, to high-density gas-discharge plasma generation. Negative-permeability spaces were designed and achieved by metamaterial structures, and injection of microwaves at several hundreds of watts into these spaces led to generation of high-density plasmas with negative permittivity, which was confirmed by plasma diagnostics. States with simultaneous negative permittivity and permeability led to dynamic generation of negative-refractive-index states, and generation processes were in strong nonlinear systems. This study allows us to propose novel plasma sources and to verify new techniques of nonlinear metamaterials for industrial activities.