The process 1 in which {HEAD ~ the active material} has composition within {TAIL ~ ±10 mole percent} of In0.53 Ga0.47 As 
The process 1 in which { HEAD ~ the active material } has composition within { TAIL ~ ±10 mole percent } of In0.53 Ga0.47 As
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH