Personnel Halting and Stimulation Response (PHaSR)

The  Personnel  Halting  and  Stimulation  Response  (PHaSR)  i s  a  rifle ­sized  laser  weapon 

system   that  uses  two  non­lethal  laser  wavelengths  to  deter,  prevent ,  or  mitigate  an adversary’s effectiveness.  The  laser  light  generated  by   this  weapon  illuminates  or  “dazzles”  aggressors, 

temporarily  impairing individuals and their ability  to see the laser source. 

PHaSR  is  the  first­ of ­a­ kind  system   that  can  be  operated  by   a  single  operator,  incorporating an  innovative  power  source  that  makes  the  system   completely   self ­contained.  The  system uses  two low­power di ode­pum ped lasers; one visible wavelength and one mid ­inf rared wavelength. 

It   was  designed  for  military  and  law  enforcement   applications  by   Scorp Works,  a  research  unit  in 

the  Laser  Division  of   the  Air  Force  Research  Laboratory ’s  Directed  Energy   Directorate  at 

Kirtl and  Air  Force  Base,  New  Mexico. Also  involved  i n  i ts  development   was  the  Laboratory ’s 

Human  Effectiveness  Directorate  at  Brooks  City ­Base,  Texas,  which  characterized  the system to ensure it can operate safely  and continues to study  the biological  effects 

by XENOCIDE