Mid-infrared nonlinear optics in thin-film lithium niobate on sapphire

Jatadhari Mishra, Timothy P. McKenna, Edwin Ng, Hubert S. Stokowski, Marc Jankowski, Carsten Langrock, David Heydari, Hideo Mabuchi, M. M. Fejer, Amir H. Safavi-Naeini
Optica
https://arxiv.org/abs/2104.05990