Spatially resolved temperature data are obtained through {HEAD ~ correlation} of the detected photoluminescence signal with location within {TAIL ~ the glass} 
Spatially resolved temperature data are obtained through { HEAD ~ correlation } of the detected photoluminescence signal with location within { TAIL ~ the glass }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL