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Q: Fachverband Quantenoptik und Photonik
Q 40: Photonics II
Q 40.1: Vortrag
Mittwoch, 8. März 2023, 14:30–14:45, F442
Bispectral High-Reflectivity Metamirrors — •Liam Shelling Neto1, Johannes Dickmann1, and Stefanie Kroker1,2 — 1TU Braunschweig, Institut für Halbleitertechnik, Braunschweig — 2Physikalisch-Technische Bundesanstalt, Braunschweig
To manipulate electromagnetic waves in unique ways, metasurfaces, the two-dimensional variant of metamaterials, have opened up a whole new world of optical functionalities. From optical imaging to quantum optics, the full potential of metasurfaces depends heavily on their building blocks, i.e. metaatoms. To design metaatoms that meet tight requirements, as is the case in high-precision optical metrology, machine learning has shown promising results in the past years. Here we show preliminary results for implementing such a framework to design focusing metamirrors that provide high reflectivities for two different wavelengths. With high reflectivity and a tailored phase profile, such metamirrors could outperform conventional multilayer mirrors for high-precision optical interferometry due to their low thermal noise.