{TAIL ~ The extraction efficiency} is proportional to the magnitude of the corresponding Fourier component of {HEAD ~ the dielectric function} ∈G given by 
{ TAIL ~ The extraction efficiency } is proportional to the magnitude of the corresponding Fourier component of { HEAD ~ the dielectric function } ∈G given by
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH