Rochon Prisms ya raba katakon shigarwar da ba bisa ka'ida ba zuwa ga fitattun katako guda biyu.Hasken rana na yau da kullun yana kasancewa akan kusurwar gani guda ɗaya da katakon shigarwar, yayin da hasken na ban mamaki ke karkata ta kwana, wanda ya dogara da tsayin haske da kayan prism (duba jadawalin Beam Deviation a cikin tebur zuwa dama) .Ƙwayoyin da aka fitar suna da babban rabo na ƙarewar polarization na> 10 000: 1 don MgF2 prism da> 100 000: 1 don a-BBO prism.