Scalar Fourier Modal Method for Wave-optic Optical-element Modeling

A scalar Fourier modal method for the numerical analysis of the scalar wave equation in inhomoge-neous space with an arbitrary permittivity profile, is proposed as a novel theoretical embodiment of Fou-rier optics. The modeling of devices and systems using conventional Fourier optics is based on the...

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Bibliographic Details
Published in:Current optics and photonics 2021, 5(5), , pp.491-499
Main Authors: Kim, Soobin, Hahn, Joonku, Kim, Hwi
Format: Article
Language:English
Subjects:
Mathematical models
Microscopes
Numerical analysis
Numerical aperture
Optical components
Optical properties
Optics
Wave equations
물리학
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Summary:A scalar Fourier modal method for the numerical analysis of the scalar wave equation in inhomoge-neous space with an arbitrary permittivity profile, is proposed as a novel theoretical embodiment of Fou-rier optics. The modeling of devices and systems using conventional Fourier optics is based on the thin-element approximation, but this approach becomes less accurate with high numerical aperture or thick optical elements. The proposed scalar Fourier modal method describes the wave optical characteristics of optical structures in terms of the generalized transmittance function, which can readily overcome a current limitation of Fourier optics.
ISSN:2508-7266
2508-7274
DOI:10.3807/COPP.2021.5.5.491