Equation Icon  ( ) Oˆ = HT [ϕ ] − √R-ˆa + χeffR F Taˆ + √T-ˆa + χeff R F T ˆa + χeffHT [ϕ ]R G 1 1 1 xx 1 1 1 2 xx 1 2 2 xx 1 1 [ˆa1] = HT [ϕ1] ⋅ 𝕄1 ⋅ + χeffxxHT [ϕ1]R1G, (265 ) ˆa2