PMID- 31052841
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20191120
IS  - 1094-4087 (Electronic)
IS  - 1094-4087 (Linking)
VI  - 27
IP  - 9
DP  - 2019 Apr 29
TI  - Discontinuous Galerkin time domain analysis of electromagnetic scattering from 
      dispersive periodic nanostructures at oblique incidence.
PG  - 13116-13128
LID - 10.1364/OE.27.013116 [doi]
AB  - An efficient discontinuous Galerkin time domain (DGTD) method with a generalized 
      dispersive material (GDM) model and periodic boundary conditions (PBCs), hereto 
      referred to as DGTD-GDM-PBCs, is proposed to analyze the electromagnetic 
      scattering from dispersive periodic nanostructures. The GDM model is utilized to 
      achieve a robust and accurate universal model for arbitrary dispersive materials. 
      Using a transformed field variable technique, PBCs are introduced to efficiently 
      truncate the computational domain in the periodic directions for both normally 
      and obliquely incident illumination cases. Based on the transformed Maxwell's 
      equations with PBCs, the formulation of the DGTD method with a GDM model is 
      derived. Furthermore, a Runge-Kutta time-stepping scheme is proposed to update 
      the semi-discrete transformed Maxwell's equations and auxiliary differential 
      equations (ADEs) with high order accuracy. Numerical examples for periodic 
      nanostructures with dispersive elements, such as reflection and transmission of a 
      thin film, surface plasmon at the interfaces of a metallic hole array structure, 
      and absorption properties of a dual-band infrared absorber are presented to 
      demonstrate the accuracy and capability of the proposed method.
FAU - Bao, Huaguang
AU  - Bao H
FAU - Kang, Lei
AU  - Kang L
FAU - Campbell, Sawyer D
AU  - Campbell SD
FAU - Werner, Douglas H
AU  - Werner DH
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Opt Express
JT  - Optics express
JID - 101137103
EDAT- 2019/05/06 06:00
MHDA- 2019/05/06 06:01
CRDT- 2019/05/05 06:00
PHST- 2019/05/05 06:00 [entrez]
PHST- 2019/05/06 06:00 [pubmed]
PHST- 2019/05/06 06:01 [medline]
AID - 409306 [pii]
AID - 10.1364/OE.27.013116 [doi]
PST - ppublish
SO  - Opt Express. 2019 Apr 29;27(9):13116-13128. doi: 10.1364/OE.27.013116.