Photophysics Characterization of Quantum Light
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Designer materials provide on-demand quantum states due to strongly correlated quantum interactions. Probing these quantum states is critical for the development of quantum technologies. The Behura Research Group is developing a complete photophysics characterization toolbox including Raman, PL, Photon Emission Correlation Spectroscopy, Photocurrent Imaging, and Time Correlated Photon Counting to study the emission phenomea of quantum light. The Group is also developing light-sensitive, mixed-dimensional 'surface junction' only one-atom below the front surface. This provides a direct access to the photosensitive junction, which can be modified by surface functionalization, and/or incorporation of plasmonic nanoparticles for efficient photodetection.
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Growth and Visualization of Quantum Emitters
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Creating solid-state quantum optical sources hosted on the surface of the material in contrast to the defect-based sources buried within the bulk of the material is promising for quantum sensing and quantum networking. In this regard, atom-thin 2D quantum materials are truly surfaces and they have unique chemical structures, robust mechanical flexibility, and novel electronic and optical properties. Behura Research Group is creating solid-state quantum optical sources in 2D and moiré materials. We also realize that these materials are prepared through either exfoliation from bulk crystals or synthesized on catalytic metal surfaces. Both approaches impose severe processing constraints hindering the integration of quantum light sources into photonic circuitry. The Behura Group is developing new atomic-scale synthesis chemistries to directly nucleate wide bandgap 2D materials and moiré superlattices.
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