χ(2) Nanomaterials for Nonlinear Integrated Photonic Devices (Prof. Rachel Grange)
χ(2) Nanomaterials for Nonlinear Integrated Photonic Devices
- Date: Feb 5, 2019
- Time: 02:30 PM (Local Time Germany)
- Speaker: Prof. Rachel Grange
- Optical Nanomaterial Group, Institute for Quantum Electronics, Department of Physics, ETH Zurich, Switzerland
- Location: Max-Planck-Institut für Quantenoptik
- Room: Hörsaal, Raum B 0.32 / New lecture hall, Room B 0.32
- Host: Max Planck Institute of Quantum Optics
Then, I will present innovative fabrication approaches of metal-oxides materials that are very different from standard semiconductors or metals. First, solution-processing of nano-oxides may solve, at the same time, the low nonlinear signal and the low throughput of photonic crystal cavity fabrication to obtain cost-effective disposable devices. Our recent results show that the easy fabrication of nonlinear 3D woodpile photonic crystal is possible with solutions of BaTiO3 nanoparticles. Besides chemically synthesized nanostructures, we developed lithography processes to obtain lithium niobate (LiNbO3) nanowaveguides4, or BaTiO3 metasurfaces.
(1) Timpu, F.; Sergeyev, A.; Hendricks, N. R.; Grange, R. Second-Harmonic Enhancement with Mie Resonances in Perovskite Nanoparticles. ACS Photonics 2017, 4 (1), 76–84.
(2) Timofeeva, M.; Lang, L.; Timpu, F.; Renaut, C.; Bouravleuv, A.; Shtrom, I.; Cirlin, G.; Grange, R. Anapoles in Free-Standing III–V Nanodisks Enhancing Second-Harmonic Generation. Nano Lett. 2018, acs.nanolett.8b00830.
(3) Timpu, F.; Hendricks, N. R.; Petrov, M.; Ni, S.; Renaut, C.; Wolf, H.; Isa, L.; Kivshar, Y.; Grange, R. Enhanced Second-Harmonic Generation from Sequential Capillarity-Assisted Particle Assembly of Hybrid Nanodimers. Nano Lett. 2017, 17 (9), 5381–5388.
(4) Escalé, M. R.; Pohl, D.; Sergeyev, A.; Grange, R. Extreme Electro-Optic Tuning of Bragg Mirrors Integrated in Lithium Niobate Nanowaveguides. Opt. Lett. 2018, 43 (7), 1515.