{HEAD ~ The method} 13, wherein calculating {TAIL ~ destructive interference conditions} comprises calculating scalar products of electrical field vectors of the two s polarized waves and of the two p polarized waves 
wherein calculating
{ HEAD ~ The method } 13 , wherein calculating { TAIL ~ destructive interference conditions } comprises calculating scalar products of electrical field vectors of the two s polarized waves and of the two p polarized waves
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH