Optical Control of Electronic Topological States
Abstract
One of the key challenges in the development of quantum technologies is the control of lightmatter interaction at the quantum level where individual excitations matter. It is intriguing to explore whether these quantum optical control techniques could pave a radically new avenue to prepare, manipulate and detect non-local and correlated electronic states, such as topological ones. In this proposal, by employing quantum optical techniques to probe and manipulate quantum Hall states, we aim at developing new techniques to go beyond local manipulation of electronic states. Specifically, we exploit optical techniques, such as photocurrent measurement, reflection, and photoluminescence spectroscopy, and correlation function measurement to investigate quantum Hall states. We apply these methods on both mature GaAs heterostructures, and also TMDs, where electronic transport measurement has been challenging. Apart from fundamental interest, such as revealing the topological nature of electronic states by optical approaches and understanding the basics of light-matter interaction in such systems, our results could be important in elucidating the origin of single-photon emitters and optical nonlinearities in two-dimensional electronic systems
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2021
- Source ID
- FA95502010223
Entities
People
- Mohammad Hafezi
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Maryland