Optik Moderen
Optik Moderen
Optik Moderen
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3.6 Lapisan homogen dan isotropikH rE rx=-d/2x=d/2xkix=( n ω / c)i2− β2n 1n 2n 3= ( ω / c)nizTinjau gelombang-s (TE):rEy( x,z,t)= yE ˆy( x)ei ( ω t − β z )β=komponen-z dari vektor gelombang.⎧Ae⎪Ey( x)= ⎨Ce⎪⎩Fecos θi−ik−ik−ik1x2 x3 xxxx+ Be+ Deik1xikx2 x, x < −d/ 2x, − d / 2 < x < d / 2, x > d / 2Medan magnet bisa ditentukan dengan:r i rH ∇ x EHH=yωμoβi(ω t −βz )x( x,z,t)= − Ey( x)eωμoii(ω t −βz )z( x,z,t)= ∂xEy( x)eωμo;40