Quantum light-matter interactions in moire superlattices
Abstract
This project aims to explore the light-matter interactions in moire quantum materials, and in particular the interplay between light and the quantum geometries and correlated electron systems in twisted graphene systems. We will apply three experimental techniques to moire materials- cryogenic THz photocurrent measurements with adjustable linear and circular polarizations, cryogenic THz photocurrent nanoscopy with 20 nm spatial resolution, and a novel THz photocurrent setup with in-situ control of the twist angle between the 2D materials. By elucidating the interplay between electronic correlations and topology, we will gain insights into the development of new material functionalities and explore the potential of creating devices that can take advantage of the unique properties of moire superlattices. Our insights will offer opportunities for designing and creation of new quantum technologies, e.g. novel ways to detect light and even single photons, and novel tuneable quantum light generation mechanisms by exploiting Bloch oscillations. The results will introduce a new paradigm for the control of light-matter interactions in moire materials, and pave the way for the design of tailored quantum materials and devices.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 22, 2024
- Source ID
- FA86552317047
Entities
People
- Frank Koppens
Organizations
- Air Force Office of Scientific Research
- United States Air Force