Abstract—A theoretical formalism is established for double-
7 j; ]) I2 d7 b/ s2 ^2 `1 @+ vlayer(DL)antireflectioncoating(ARC)onaone-dimensional& I- D; A7 @- j! P# V6 K
(1-D)photoniccrystal(PC).ConventionalDL-ARCforabulkis. O( |1 M% Z- C6 G2 V ~1 F3 T; |
equallyapplicablefora1-DPCwhenthebulksubstrateindexis
: ]8 t6 V( t9 u: Sreplacedwiththeopticaladmittance,whichcanbeobtainedfrom
& Y: B2 b' Q# _( B6 F0 g6 o' JtheelectromagneticBlochwavesoftheinfinite1-DPC.Numerical' B* c) G( L4 A* ?
calculationsareperformedforamodelstructurecomposedof# m0 f$ _, N; P+ ^
GaAsandAlAs-oxidelayerstoconfirmthevalidityofthetheory.
$ s3 Q5 j8 Q0 M! [' cIntermsofrealizationandpracticality,thisDL-ARCisexpected
: C' y, T" a+ B& a6 c( utobesuperiortothesingle-layerversion.; s: Z! J0 l+ C% Y
IndexTerms—Blochwave,double-layerantireflectioncoating
+ g, p& w- A5 D4 s5 g(DL-ARC),one-dimensionalphotoniccrystals(1-DPCs),optical
5 V* R( E) S- L+ a: aadmittance. |
发表于 2007-5-26 17:36:36
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