Silicon photonic devices are very sensitive to process variation, and it is important for circuit designers that they can predict the effect of this variability during the design phase, and optimize their design for both performance and yield. This requires an accurate predictive model of the spatial variations induced by the fabrication process. W...
In this paper, we review the specific field that combines topological photonics and deep learning (DL). Recent progress of topological photonics has attracted enormous interest for its novel and exotic properties such as unidirectional propagation of electromagnetic waves and robust manipulation of photons. These phenomena are expected to meet the ...
This paper presents the aerodynamic performance analysis of realistic large passenger aircraft equipped with a Hybrid Laminar Flow Control (HLFC) system. To this purpose, the design of two HLFC aircraft geometries is first outlined, both designed by DLR based on an Airbus HLFC variant of the XRF-1 geometry. Numerical simulations were performed with...
© The Authors. Published by SPIE and CLP under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.Metasurfaces have attracted great attention due to their ability to manipulate the phase, amplitude, and polar...
Miniaturization is a strong demand of modern scientific technology. However, conventional optical components based on refraction suffer from functional degradation as the device size decreases. Metasurfaces consisting of subwavelength optical antenna arrays have emerged as planar optical devices that enable many promising applications in lenses, ho...
The shaped sonic boom theory is a valuable, efficient, computationally economical and robust tool in preliminary design of low-boom aircraft configurations. Instead of introducing a new F-function parameterization, as it has been investigated al-ready in the past, the paper adopts a more general formulation proposed in the lit-erature and focuses o...
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A method for the design of airfoils and wings in transonic flow is described, in which the desired pressure distribution on the contour has to be prescribed. The pressure distribution on the surface for a given initial geometry is calculated by a solution of the Euler/Navier-Stokes equations. For the design problem the difference between the calcul...
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