FIG 1 is an illustration of an embodiment of {TAIL ~ a photonic band gap routing arrangement} having routing elements with {HEAD ~ four selectable routing directions} 
FIG 1 is an illustration of an embodiment of { TAIL ~ a photonic band gap routing arrangement } having routing elements with { HEAD ~ four selectable routing directions }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD