Each laser pulse has {TAIL ~ a pulse energy}, {HEAD ~ a laser wavelength} within a range of laser wavelengths, and a pulse duration 
Each laser pulse has { TAIL ~ a pulse energy } , { HEAD ~ a laser wavelength } within a range of laser wavelengths , and a pulse duration
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH