§5-5圆孔的夫琅和费衍射 因为d Z/1(2)=2/0(z) 2To kae E(P)=2me Jof-RuherSlkieyokreX(kre) 变为 E(P) 2To kra,ki 7)=a 2J, (kaO k 0 Ta c kae§5－5圆孔的夫琅和费衍射 ◼ 因为 ◼ 则 ◼ 变为 ( ) ( )  ( ) ( )        ka 2J ka a c' ~ 2 ' r a 2 1 2 1 1 1 r 0 1 1 = = = = k r J k r k c E P [ ( )] ( ) 1 0 zJ z zJ z dz d = ( ) ( ) ( ) (  ) (  ) (  )      0 1 1 0 1 1 2 1 0 0 1 2 ' 2 ' ~ k r J k r d k r k c E P c J k r r dr a ka   = − =