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[Editors Pick] Current Optics and Photonics Vol. 5 no. 6 (2021 December)

사무국 hit 586 date 2021-12-27

Fourier Modal Method for Optical Dipole Radiation in Photonic Structures

Sungjae Park1ㆍJoonku Hahn2ㆍHwi Kim1*

 

Current Optics and Photonics  Vol. 5 No.6 (2021 December) pp. 597-605
DOI: https://doi.org/10.3807/COPP.2021.5.6.597

  Fig. 1  Photonic multiblock structure with an optical-source-embedding block, and the optical field distributions for (a) a dipole with polarization P = (1, 0, 0) and (b) a dipole with polarization P = (0, 0, 1). The thicknesses of block #1, the cathode, block #2, the active block, block #3, and the anode are 70 nm, 8 nm, 31 nm, 38 nm, 157 nm, and 114 nm respectively, and their refractive indices (n + jk) are 1.88, 0.191 + 3.24j, 1.71, 1.84 + 0.00272j, 1.94, and 0.129 + 3.19j, respectively.

 

Keywords: Fourier modal method, Numerical modeling
OCIS codes: (000.3860) Mathematical methods in physics; (050.1755) Computational electromagnetic methods; (050.1960) Diffraction theory
 
Abstract
An extended Fourier modal method (FMM) for optical dipole radiation in three-dimensional photonic structures is proposed. The core elements of the proposed FMM are the stable bidirectional scatteringmatrix algorithm for modeling internal optical emission, and a novel optical-dipole-source model that prevents numerical errors induced by the Gibbs phenomenon. Through the proposed scheme, the FMM is extended to model a wide range of source-embedded photonic structures.