A numerical tour of wave propagation

Perfectly Matched Layer (PML)

The PML ABC was proposed in electromagnetics computation (Berenger, 1994). In seismic wave propagration community, two versions of PML boundary condition have been developed: the split PML (SPML) and nonsplit PML (NPML).

• Split PML (SPML) for acoustics
• Nonsplit Convolutional-PML (CPML) for acoustics
• Nonsplit PML (NPML) for elastics