Despite the short duration, they carry a powerful punch. These ultrashort pulses can produce miniscule fireballs which can be as hot as the surface of the sun. A direct hit is not the only danger to the human eye. Indirect or a reflection off another surface can also harm people. Certain lasers are powerful enough to cause blindness when reflected off a carpet or other reflectors like a mirrored surface, said Roach.
Some lasers are so bright that they can cause harm even at far distances.
The new standards detail safety limits when working with ultrashort laser pulses, including the maximum amount of exposure without risking injury. The guidelines also highlight ways to protect the retina and cornea, and include safety precautions for the skin as well. Workers can safely operate research industrial grade lasers, Roach believes, if the right controls safeguards and protections are in place. Research continues on the effects of laser light on the human body. The ABL design uses an active tracking system for precision tracking of missile targets.