code for FDTD 1D with pml and source

meep是MIT开发的时域有限差分软件，能精确计算电磁波在各种介质中的传播。-Meep (or MEEP) is a free finite-difference time-domain (FDTD) simulation software package developed at MIT to model electromagnetic systems, along with our MPB eigenmode package. Its features include: Mee

一维FDTD程序， 包含两种吸收边界条件：SIABC和PML， 其中PML需要另外初始化-FDTD codes in 1d, with 2 abcs: SIABC and PML, of which PML should be initialized separately.