Equation Icon  ∘ ----[ ∘ ---- ] ∘ ---- ˆb1,2(ω) = − R1,2 ˆa1,2(ω) − 2i kkpA1,2xˆ1,2(Ω) + T1,2ˆe1,2(ω), (541 ) ˆf (ω) = ˆs (ω) + ∘R----ˆe (ω ), 1,2 1,2 1,2 1,2 ˆe1,2(ω) = ˆf2,1(ω)eiωτ, (542 )