Comparison of absorption simulation in semiconductor nanowire and nanocone arrays with the Fourier modal method, the finite element method, and the finite-difference time-domain method
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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2020
Department
Department of Electronics and Nanoengineering
Department of Neuroscience and Biomedical Engineering
Department of Neuroscience and Biomedical Engineering
Major/Subject
Mcode
Degree programme
Language
en
Pages
12
Series
Nano Express, Volume 1
Abstract
For the design of nanostructured semiconductor solar cells and photodetectors, optics modelling can be a useful tool that reduces the need of time-consuming and costly prototyping. We compare the performance of three of the most popular numerical simulation methods for nanostructure arrays: the Fourier modal method (FMM), the finite element method (FEM) and the finite-difference time-domain (FDTD) method. The difference between the methods in computational time can be three orders of magnitude or more for a given system. The preferential method depends on the geometry of the nanostructures, the accuracy needed from the simulations, whether we are interested in the total, volume-integrated absorption or spatially resolved absorption, and whether we are interested in broadband or narrowband response. Based on our benchmarking results, we provide guidance on how to choose the method.Description
Keywords
optics simulation, Fourier modal method (FMM), finite element method (FEM), finite-difference time-domain (FDTD) method, absorption, nanostructure array
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Citation
Anttu, N, Mäntynen, H, Sadi, T, Matikainen, A, Turunen, J & Lipsanen, H 2020, ' Comparison of absorption simulation in semiconductor nanowire and nanocone arrays with the Fourier modal method, the finite element method, and the finite-difference time-domain method ', Nano Express, vol. 1, 030034 . https://doi.org/10.1088/2632-959X/abd0d6
