Ko ngā Arotahi Matawai F-Theta 355nm e whakamahia whānuitia ana i roto i ngā pūnaha matawai galvanometer mō te tohu laser; me te kaha ki te tuku i tētahi wāhi arotahi ki ngā pūwāhi maha i roto i te mara matawai. Ka tukuna hoki e mātou he urutau arotahi ki ngā kaiwhakarato upoko matawai nui o te ao.
E 20 tau te roangaru e arotahi ana ki te whakarato i ngā hua whatu tino tika.