Preferably, the member includes a restrictor having the opening and in thermal contact with the electromagnetically reactive portion and the providing means includes {HEAD ~ means} for producing {TAIL ~ electromagnetic radiation} 
for producing
Preferably , the member includes a restrictor having the opening and in thermal contact with the electromagnetically reactive portion and the providing means includes { HEAD ~ means } for producing { TAIL ~ electromagnetic radiation }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL