Customized Perovskite Quantum Dots and their Assemblies- Towards Novel Quantum Light Sources (Cute-QL)
Abstract
The second quantum revolution, with its advancements in quantum computing, communication, and sensing, is fueled by the increasingly precise control over individual quantum systems. Additionally, achieving strong coupling between quantum entities is crucial for realizing more complex quantum states of light, such as high-order photonic Fock states (N ≥ 2). In this project, we aim to tackle this challenge by leveraging three decades of expertise in the synthesis and assembly of colloidal quantum dots (QDs) and building on insights from the AFOSR-funded PH-Count project. Our objectives include engineering QDs with vanishing fine-structure splitting (FSS) of band-edge excitons and with exceptionally high oscillator strength. These goals capitalize on the vast chemical engineerability of colloidal QDs, allowing precise control over nanocrystal size, shape, and composition to finely tune the FSS. Additionally, we will utilize electric field and strain control, proven solutions already exploited for epitaxially-grown QDs. Moreover, we plan to embed individual QDs and QD superlattices (SLs) into photonic resonators, such as optical microcavities and plasmonic resonators, to exploit the Purcell effect and enhance radiative rates. This integration requires the development of a deterministic positioning methodology for individual QD and QD SLs and aims to improve single-photon purity and indistinguishability, facilitate many-body interactions among different QDs, and ultimately create large N-photon Fock states.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 05, 2025
- Source ID
- FA86552417064
Entities
People
- Maksym Kovalenko
Organizations
- Air Force Office of Scientific Research
- United States Air Force