Simulation and design of photonic metasurfaces for plasmonic colouring, nonlinear light engineering, and beam steering

Seminar über Theoretische Festkörperphysik


Antonio Calà Lesina


14/06/2021 14:00


This seminar will take place via Zoom. To receive the linke to the seminar please contact


Leibniz Universität Hannover


Prof. Dr. Carsten Rockstuhl


The resonant interaction of light with nanostructures and metasurfaces enables the control of light properties beyond what is possible with bulk optical components. In this talk, I will discuss some results on random plasmonic metasurfaces for metal colouring [1], metasurfaces for nonlinear light structuring [2], and tunable hybrid nanostructures for optical phased arrays [3]. I will also highlight the focus of my team on the high-performance computing tools to accelerate the simulation and design of such systems [4].

[1] J.-M. Guay, A. Calà Lesina, et al., “Laser-written colours on silver: optical effect of alumina coating,” Nanophotonics 8(5), 2019.
[2] A. Calà Lesina, P. Berini, and L. Ramunno, “Vectorial control of nonlinear emission via chiral butterfly nanoantennas: generation of pure high order nonlinear vortex beams,” Optics Express 25(3), 2017.
[3] A. Calà Lesina, D. Goodwill, E. Bernier, L. Ramunno, and P. Berini, “Tunable plasmonic metasurfaces for optical phased arrays,” IEEE Journal of Selected Topics in Quantum Electronics 27(1), 2021.
[4] J. Baxter, A. Calà Lesina, and L. Ramunno, “Parallel FDTD modelling of nonlocality in plasmonics,” IEEE Transactions on Antennas and Propagation, 2020.