Our group investigates the physics of solid-state quantum emitters and their interactions with host materials and engineered photonic structures. We study how material composition, processing conditions, and the local environment govern emitter formation, emission stability, and optical coherence. We also investigate how coupling to cavities and waveguides modifies emission dynamics, photon collection, and photon indistinguishability. Our research program also includes optically addressable spin defects, focusing on the mechanisms governing spin coherence and the requirements for spin preparation, control, and optical readout. Across these directions, we seek to establish the physical understanding and experimental control needed for quantum light sources and spin-photon interfaces compatible with scalable integrated photonics.
Research directions
Discovery and development of solid-state quantum emitters
Relevant publications
- Room-temperature single-photon emitters in silicon nitride
- Silicon Nitride Waveguides with Intrinsic Single-Photon Emitters for Integrated Quantum Photonics
- Photophysics of Intrinsic Single-Photon Emitters in Silicon Nitride at Low Temperatures
- Single-photon emitters in PECVD-grown silicon nitride films: from material growth to photophysical properties
- Quantum emitters in aluminum nitride induced by heavy ion irradiation (Featured article)
Optically addressable spins and spin-photon interfaces
Relevant publications
- Quantum emitters in aluminum nitride induced by heavy ion irradiation (Featured article)
Light-matter interactions and integrated quantum photonics
Nanophotonic structures can modify how emitters radiate, improve photon collection, enhance light-matter interactions, and route photons on chip. We investigate how cavities, waveguides, resonators, and photonic integrated circuits can be used to control quantum emission and improve the performance of quantum light sources.
Relevant publications
- Silicon Nitride Waveguides with Intrinsic Single-Photon Emitters for Integrated Quantum Photonics
- Many-body entanglement in solid-state emitters (Review article, Nature Reviews Materials)
- Efficient Silicon Nitride Quantum Interconnect for Intrinsic Silicon Nitride Single-Photon Emitters
- Roadmap for Optical Metasurfaces (Review article, ACS Photonics)
Collaborative approach
Our lab focuses on optical spectroscopy, quantum optical measurements, and photonic characterization. We collaborate with researchers in materials growth, nanofabrication, and theoretical modeling to study promising platforms for quantum photonics.
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