"Alfred Kastler" yana nufin sunan mutum kuma bashi da ma'anar ƙamus. Duk da haka, Alfred Kastler wani masanin kimiyyar lissafi dan kasar Faransa ne wanda ya samu lambar yabo ta Nobel a fannin Physics a shekarar 1966 saboda aikin da ya yi wajen bunkasawa da kuma amfani da fasahar na'ura mai kwakwalwa ta microwave, wacce wata dabara ce da ake amfani da ita wajen nazarin kaddarorin kwayoyin halitta da kwayoyin halitta ta hanyar lura da mu'amalarsu da radiation na electromagnetic a cikin kewayon microwave.