线偏振模LPlm的构成(0<r<a) AU +1)p Ur、sn(l-1) E kone l+1 coS(l+Do a'-coS(l-D)o A 0 Ur、cos(+1)p Ur、cos(-1)p 2k。n sin(l +D)o a"sn(-1) Ur、cosl EV=AJ,O Ur、 oslo E.=0 H≈0线偏振模LPlm的构成(0<r<a) 0 0 sin cos ( ) sin cos ( ) sin( 1) cos( 1) ( ) sin( 1) cos( 1) ( ) 2 cos( 1) sin( 1) ( ) cos( 1) sin( 1) ( ) 2 0 0 1 1 0 0 0 1 1 0  = = - =       - - - + + = -       - - - + - + + = + - + - I y I x l I x l I y l l I z l l I z H E l l a U r H n A J l l a U r E A J l l a U r J l l a U r J k na A U H j l l a U r J l l a U r J k na A U E j                  