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