Scalable Single Photon Source Using CVD-Grown Monolayer Crystals on Nano-Rod Lattices
Abstract
Single photon emitters (SPEs) are an essential building block for quantum information systems and related technologies. Despite tremendous progress on SPEs in a variety of materials and structures, most of them are limited in scalability and working temperature. A technologically viable SPE remains a grand challenge. The newly emerged monolayer transitional metal dichalcogenides (TMDs) feature single photon emission up to the room temperature and unprecedented flexibility of integration. Seizing this opportunity, we aim to develop on-chip, high temperature SPSs through a collaborative effort that leverages the Lees world-renowned expertise on chemical vapor deposition (CVD) growth of van der Waals materials and Dengs expertise on quantum optics and site controlled SPSs. Main achievements of project includes:1. Achieved promoter-assisted CVD of high-quality TMDs2. Identified the critical role of interface cleanness in determining structural and emission properties of TMD heterostructures3. Developed methods of ultraclean transfer of large-area TMDs that enabled direct STM imaging of moir patterns.4. Developed plasmonic structures to induce quantum dot (QD) arrays in TMDs and enhance single photon emission.5. Developed nanoimprint method for creating SPE in a way that is flexible, high-yield, rewritable and affordable.6. Demonstrated nonlinear phonon scattering in monolayer MoS2.7. Demonstrated the first interlayer exciton laser in WSe2/MoSe2 hetero-bilayers, potentially originating from moir QD arrays.8. Demonstrated a tunable QD-array polariton system, featuring simultaneous collective light-matter coupling and a strong nonlinearity due to quantum-confinement.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 23, 2023
- Accession Number
- AD1215752
Entities
People
- Hui Deng
Organizations
- Board of Regents of the University of Michigan