Rachel Grange will give a talk at CREF, June 14 2024 11 AM

Abstract

Lithium niobate on Insulator and Beyond: Overcoming Fabrication Challenges for Integrated and Flat Photonics
Nonlinear and electro-optic devices are present in our daily life with many applications: light sources for microsurgery, green laser pointers, or modulators for telecommunication. Most of them use bulk materials such as glass fibers or high-quality crystals, hardly integrable or scalable. Even the fast developments of thin film lithium niobate face the challenging etching of metal-oxides. Therefore, the quest for a non-centrosymmetric material system that is easy to fabricate and scale up while maintaining its functionality is still ongoing. Here, I will present our recent advances in top-down fabrication of lithium niobate devices and bottom-up assemblies of randomly oriented nanocrystals or sol-gel to produce nonlinear classical and quantum signals.

The Speaker

Prof. Dr. Rachel Grange is an Associate Professor at the Department of Physics and deputy head of the Department of Physics / Head of FIRST Center for Micro—and Nanoscience. Her research covers material investigations at the nanoscale with high-resolution imaging tools. She develops top-down and bottom-up fabricated nanostructures with metal oxides, mainly lithium niobate and barium titanate. Her goal is to understand and control their behaviours to design versatile compact photonic devices. Recently, she worked on an integrated electro-optic spectrometer and random quasi-phase matching phenomena in complex assemblies of nanocrystals.

It is possible to attend the seminar in person or online :

in person, please register at eventi@cref.it (name, surname, university and date of birth are requested)

online:  please Join Zoom Meeting
https://us06web.zoom.us/j/86225655849?pwd=rxWvwEOaZQ0ugSB0zxn0iW5Q9uFLg4.1

Meeting ID: 862 2565 5849
Passcode: 772940