2022
DOI: 10.48550/arxiv.2201.12341
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VarRCWA: An Adaptive High-Order Rigorous Coupled Wave Analysis Method

Abstract: Semi-analytical methods, such as rigorous coupled wave analysis, have been pivotal for numerical analysis of photonic structures. In comparison to other methods, they offer much faster computation, especially for structures with constant cross-sectional shapes (such as metasurface units). However, when the cross-sectional shape varies even mildly (such as a taper), existing semi-analytical methods suffer from high computational cost. We show that the existing methods can be viewed as a zeroth-order approximati… Show more

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