Since {HEAD ~ the electric field} is proportional to {TAIL ~ the ultrasonic phonon flux}, it is independent of phase information present in the acoustic wave and as such is the incentive of this invention 
is proportional to
Since { HEAD ~ the electric field } is proportional to { TAIL ~ the ultrasonic phonon flux } , it is independent of phase information present in the acoustic wave and as such is the incentive of this invention
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL 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