The YAG laser is produced by {HEAD ~ exciting artificial crystal} comprising {TAIL ~ yttrium}, aluminum and garnet to which an active ion Nd3+ contributing to laser oscillation is added 
comprising
The YAG laser is produced by { HEAD ~ exciting artificial crystal } comprising { TAIL ~ yttrium } , aluminum and garnet to which an active ion Nd3 + contributing to laser oscillation is added
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH