Mötesplats Rydberg: From Diffractive Optics to Metasurfaces: Advancing X-ray Imaging and 3D Nanofabrication of Metamaterials

On Mötesplats Rydberg 9 September:

From Diffractive Optics to Metasurfaces: Advancing X-ray Imaging and 3D Nanofabrication of Metamaterials

With Mattias Kagias, Associate senior lecturer, Synchrotron Radiation Research, Department of Physics, Lund University.

Abstract
Manipulating light across the electromagnetic spectrum is critical for the development of complex material systems. In this presentation, I will highlight two timely examples where progress in optical engineering has contributed to advancements in characterization and fabrication of complex materials such as fiber composites and 3D metamaterials. 

First, I will present omnidirectional X-ray scattering imaging based on diffractive optics [1], a technique that overcomes the conventional trade-off between spatial resolution and field of view in full-field imaging. I will show how this method enables detailed characterization of industrially relevant fiber-reinforced composites. 

Next, I will introduce dielectric metasurfaces, the successor of diffractive optics, and demonstrate their application in scalable high-resolution 3D lithography [2] and the fabrication of 3D metamaterials. 

Finally, I will discuss ongoing developments in metasurface enabled lithography and its potential to drive future applications in photonics and mechanical metamaterials.

[1] M. Kagias et al. “Diffractive small angle X-ray scattering imaging for anisotropic structures”  Nature Communications 10, 5130 (2019). 

[2] M. Kagias et al. “Metasurface-enabled holographic lithography for impact-absorbing nanoarchitected sheets” Advanced Materials 2209153 (2023). 

Hybrid meeting

Please feel very welcome to join us on-site in the Rydberg lecture hall at 15.15. 
You can also join Mötesplats Rydberg online via the meeting tool Zoom: 

Zoom-link to Mötesplats Rydberg.