If {HEAD ~ the material} of the cover layer 2 of the refractive index n fills {TAIL ~ the grooves} of the relief structure 4, the geometrical profile height hG multiplied by the refractive index n becomes optically effective as the profile height h 
fills
If { HEAD ~ the material } of the cover layer 2 of the refractive index n fills { TAIL ~ the grooves } of the relief structure 4 , the geometrical profile height hG multiplied by the refractive index n becomes optically effective as the profile height h
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL 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 OTH OTH OTH OTH