However, the invention does not exclude other gaseous media, such as for example a mixture containing carbon monoxide, of which excitation produces {TAIL ~ an emission}, still in the infrared, of {HEAD ~ about 5 μm wave length} 
However , the invention does not exclude other gaseous media , such as for example a mixture containing carbon monoxide , of which excitation produces { TAIL ~ an emission } , still in the infrared , of { HEAD ~ about 5 μm wave length }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD