Displaying items by tag: metamaterials
Published in 2023
Published in 2023
Dielectric microspheres covered with metallic nanorods for perfect lensing and cloaking applications
Published in 2020
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Published in 2018
Published in 2010
This post continues the series on modelling point dipole sources using reciprocity. It shows a concrete example of an ensemble of dipole emitters near a periodic nanostructure, which highlights the computational advantage of exploiting the receprocity theorem.
Published in Blog
This blog post is based on the publication P.-I. Schneider, et al. Benchmarking five global optimization approaches for nano-optical shape optimization and parameter reconstruction.ACS Photonics 6, 2726 (2019). Several global optimization methods for three typical nano-optical optimization problems are benchmarked: particle swarm optimization, differential evolution, and Bayesian optimization as well as multistart versions of downhill simplex optimization and the limited-memory Broydenu2013Fletcheru2013Goldfarbu2013Shanno (L-BFGS) algorithm. In the shown examples, Bayesian optimization, mainly known from machine learning applications, obtains significantly better results in a fraction of the run times of the other optimization methods.
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Published in 2019