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18 June 2024 Enabling large-scale nanostructure modeling by Fourier modal method in combination with distributed computing
Benjamin Krüger, Christian Hellmann, Frank Wyrowski
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Proceedings Volume PC13023, Computational Optics 2024; PC130230D (2024) https://doi.org/10.1117/12.3022830
Event: SPIE Optical Systems Design, 2024, Strasbourg, France
Abstract
In many simulations of large optical systems, the requirement on CPU-time and memory renders a simulation of the full system very time consuming or even impossible. A possible solution is the simulation of subsystems and the subsequent stitching of the calculated fields. In distributed computing, stitching may strongly decrease the computation time and the simulation of large systems may become possible. We investigated simulation time and accuracy of the simulations of such systems using the Fourier modal method. For that purpose, we investigated the calculated fields for different boundary conditions and different illuminations by the incident light. For the boundary conditions, we used periodic and absorbing boundaries. The investigated illuminations contain the field that illuminates the full system and restrictions of the illumination to parts of the subsystem. Both points have a significant influence on how large the overlap needs to be to get a desired accuracy.
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Benjamin Krüger, Christian Hellmann, and Frank Wyrowski "Enabling large-scale nanostructure modeling by Fourier modal method in combination with distributed computing", Proc. SPIE PC13023, Computational Optics 2024, PC130230D (18 June 2024); https://doi.org/10.1117/12.3022830
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KEYWORDS
Simulations
Distributed computing
Modeling
Nanostructures
Boundary conditions
Computation time
Computing systems
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