Electromagnetic field generated by a horizontal electric dipole on double negative medium half space 水平电偶极子在负折射媒质半空间激励的场偶极子与偶极子相互酌
In this thesis, the electromagnetic ( EM ) wave propagation and scattering in double negative medium ( DNG ) are investigated with finite-difference time-domain ( FDTD ) method and CST software. The applications of DNG to reduce RCS are discussed. 本论文用时域有限差分(FDTD:Finite-DifferenceTime-Domain)方法和CST软件对电磁波在双负介质中的传播和散射特性进行了研究,探讨其在隐身方面的应用。
Study of Chirps Induced by Nonlinear Effects in the Negative Refractive Medium 负折射介质中各阶非线性效应所致啁啾的研究
The optical cavities of general curved-mirrors with a negative lenslike medium are discussed, and used to analyze the thermal lensing effects in gas lasers. 本文讨论了类负透镜介质一般曲面镜光学谐振腔,并用来分析气体激光器中的热透镜效应。
The results show : both pulse width and bandwidth are widened in positive dispersion medium, but pulse width is getting more and more narrow along propagating direction in negative dispersion medium, which is a typical soliton pulse. 结果表明:在正色散介质中,脉宽及带宽均展宽,而在负色散介质中,脉冲沿传播方向越来越窄,表现为孤子效应。