The Optical Nanomaterial Laboratory at the Physics Department of ETH Zurich is looking for a
Post Doc in Quantum Photonics on Integrated Nonlinear Devices
The investigation of nanomaterials for photonic applications is a fast growing field, in particular the research on the well-established semiconductors, and metallic nanostructures. In linear optics, elements such as gold nanoantennas are limited to enhance scattering resonances, electromagnetic fields, or intensities at very specific wavelength and with thermal losses. With nonlinear optics, the control of the light by the light itself becomes possible, offering more possibilities for new frequencies generation, all-optical switches or quantum light sources. In our group, we use perovskite thin films, such as barium titanate (BaTiO3) and lithium niobate (LiNbO3), as nonlinear optical materials with large second-order susceptibilities (χ(2) tensor), high transparency in the ultraviolet (UV) to the infrared (IR) wavelength range, and high refractive indices. Furthermore, we structure the thin films and profit from the electro-optic properties to engineer their nonlinear responses (Escalé, M. R.; et al. Extreme Electro-Optic Tuning of Bragg Mirrors Integrated in Lithium Niobate Nanowaveguides. Opt. Lett. 2018, 43 (7))
This project is about on-chip integration of quantum effects using perovskite thin films. The integration is key to increase the sensitivity of quantum imaging scheme or to improve the robustness and key rate of quantum communication protocols and for achieving more efficient and error-tolerant quantum computing. The research work consists in the design, the fabrication and the experimental characterization of integrated quantum optical devices using advanced modelling, nanofabrication and optical setups.
The successful candidate should be highly motivated and creative, show an exceptional track record, and have a background in quantum physics, photonics and/or nanofabrication. She/he should be interested in working in an interdisciplinary environment at the interface of nanotechnology, photonics and material sciences. Furthermore, the ideal skills needed for this project are in nonlinear optics, nanophotonics, electro-optics, nanofabrication, integrated quantum optics, and simulations with the ability to work in a multidisciplinary team. The preferred starting dates for this position is between November 2018 and March 2019 for up to 3 years.