Please use this identifier to cite or link to this item:
http://elar.urfu.ru/handle/10995/102926
Title: | Efficient HIE-FDTD method for designing a dual-band anisotropic terahertz absorption structure |
Authors: | Zhou, Y. Li, H. Li, L. Cai, Y. Zeyde, K. Han, X. |
Issue Date: | 2021 |
Publisher: | The Optical Society |
Citation: | Efficient HIE-FDTD method for designing a dual-band anisotropic terahertz absorption structure / Y. Zhou, H. Li, L. Li, et al. — DOI 10.1364/OE.427420 // Optics Express. — 2021. — Vol. 29. — Iss. 12. — P. 18611-18623. |
Abstract: | The finite-difference time-domain (FDTD) method is considered to be one of the most accurate and common methods for the simulation of optical devices. However, the conventional FDTD method is subject to the Courant-Friedrich-Levy condition, resulting in extremely low efficiency for calculating two-dimensional materials (2DMs). Recent researches on the hybrid implicit-explicit FDTD (HIE-FDTD) method show that the method can efficiently simulate homogeneous and isotropic 2DMs such as graphene sheet; however, it is inapplicable to the anisotropic medium. In this paper, we propose an in-plane anisotropic HIE-FDTD method to simulate optical devices containing graphene and black phosphorus (BP) sheets. Numerical analysis shows that the proposed method is accurate and efficient. With this method, we present a novel multi-layer graphene-BP-based dual-band anisotropic terahertz absorption structure (GBP-DATAS) and analyze its optical characteristics. Combining the advantages of graphene and BP localized surface plasmons, the GBP-DATAS demonstrates strong anisotropic plasmonic resonance and high absorption rate in the terahertz band. © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. |
Keywords: | ANISOTROPY BLACK PHOSPHORUS FINITE DIFFERENCE TIME DOMAIN METHOD GRAPHENE NUMERICAL METHODS OPTICAL DEVICES SURFACE PLASMON RESONANCE SURFACE PLASMONS ANISOTROPIC MEDIUM HOMOGENEOUS AND ISOTROPIC IMPLICIT-EXPLICIT LOCALIZED SURFACE PLASMON OPTICAL CHARACTERISTICS PLASMONIC RESONANCES TERAHERTZ ABSORPTION TWO-DIMENSIONAL MATERIALS TIME DOMAIN ANALYSIS |
URI: | http://elar.urfu.ru/handle/10995/102926 |
Access: | info:eu-repo/semantics/openAccess |
SCOPUS ID: | 85107308478 |
WOS ID: | 000659223100068 |
PURE ID: | 22104727 2dcb5a81-f8c7-41e1-a1b4-5ce046e0a2d8 |
ISSN: | 10944087 |
DOI: | 10.1364/OE.427420 |
metadata.dc.description.sponsorship: | Natural Science BasicResearch Program of Shaanxi Province (2020JM-515); KeyResearch and Development Projects of Shaanxi Province (2018GY-151); Natural Science Foundation of Fujian Province (2020J01294). |
Appears in Collections: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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