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