SKM 2021 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 15: Focus Session: Tailored Nonlinear Photonics

HL 15.2: Invited Talk

Thursday, September 30, 2021, 10:30–11:00, H4

Lithium niobate nonlinear nanophotonics — •Frank Setzpfandt — Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University Jena

Lithium niobate is one of the most interesting optical materials, owing to its high transparency in a wide spectral range, high second-order nonlinearity, and the ability for quasi-phase matching. These enticing properties have been utilized many times in nonlinear optics, in particular for nonlinear parametric frequency conversion. However, lithium niobate is also a material that is challenging to structure on the nanoscale, which is only done regularly since a short time.

In this talk, I will discuss our recent progress in the implementation of nanoscale structures in lithium niobate and their application for the generation of classical and quantum light by parametric frequency conversion. In particular, I will focus on our realization of lithium niobate metasurfaces and their use in experimental demonstrations of second-harmonic and photon-pair generation .