CAJ | 학술논문

采用非磁化等离子体的分段线形电流密度卷积(Current density convolution, JEC)时域有限差分(Finite-different time-domain, FDTD)算法研究了具有单一缺陷层的一维时变非磁化等离子体光子晶体的缺陷模特性.以高斯脉冲为激励源,通过由算法公式得到的电磁波透射系数讨论了等离子体上升时间对其缺陷模的影响.结果表明,改变等离子体的上升时间和密度可以获得不同的缺陷模.
채용비자화등리자체적분단선형전류밀도권적(Current density convolution, JEC)시역유한차분(Finite-different time-domain, FDTD)산법연구료구유단일결함층적일유시변비자화등리자체광자정체적결함모특성.이고사맥충위격려원,통과유산법공식득도적전자파투사계수토론료등리자체상승시간대기결함모적영향.결과표명,개변등리자체적상승시간화밀도가이획득불동적결함모.
The current density convolution (JEC) on finite-different time-domain (FDTD) method for unmagnetized plasmas is applied to study on properties of the one dimension time-varying unmagnetized plasma photonic crystals with a defect layer . The electromagnetic propagation process of a Gaussian pulse through a time-varying magnetized plasma photonic crystal is investigated. The transmission coefficients through time-varying unmagnetized plasma photonic crystals are calculated, and the effects of plasma rising time and density on characteristic of defect mode for unmagnetized plasma photonic crystals are analyzed with them. The results illustrate that the different defect modes can be realized by changing the rising time and density of plasma.