BOR FDTD PML

hello

I have written a BOR FDTD program but I don't know how to put it's PML around it.

can anybody help me how to do it?

thanks.

There is a PIER paper on the topic which is probably available online.

Progress In Electromagnetics Research, PIER 24, 257-*277, 1999

A BODY OF REVOLUTION FINITE DIFFERENCE TIME
DOMAIN METHOD WITH PERFECTLY MATCHED LAYER
ABSORBING BOUNDARY

V. Rodriguez-Pereyra, A. Z. Elsherbeni, and C. E. Smith