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