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20 August 2020 Optical topological materials and winding numbers
Alexander Quandt
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Proceedings Volume 11461, Active Photonic Platforms XII; 1146115 (2020) https://doi.org/10.1117/12.2567486
Event: SPIE Nanoscience + Engineering, 2020, Online Only
Abstract
Materials with nontrivial topological properties may also be found in standard optical systems like photonic crystals and waveguide arrays. Many of these systems are characterized by a well-defined topological winding number (also known as the Brouwer degree). We pick several interesting optical model systems to show that the winding number is a very simple topological concept, which can often be guessed intuitively. However, even for minor modifications of the standard topological model systems the use of the simplest types of winding numbers is no longer justified. Thus, we also present ongoing research to employ other intuitive topological concepts.
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Alexander Quandt "Optical topological materials and winding numbers", Proc. SPIE 11461, Active Photonic Platforms XII, 1146115 (20 August 2020); https://doi.org/10.1117/12.2567486
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KEYWORDS
Systems modeling
Mathematical modeling
Photonic crystals
Waveguides
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