- Photonic and Optical Devices
- Nanowire Synthesis and Applications
- Optical Network Technologies
- Mechanical and Optical Resonators
- Quantum Information and Cryptography
- Plasmonic and Surface Plasmon Research
- Semiconductor Quantum Structures and Devices
The University of Queensland
2023-2024
ARC Centre of Excellence for Engineered Quantum Systems
2023
Terahertz (THz) waves are a highly sensitive probe of free carrier concentrations in semiconducting materials. However, most experiments operate the far-field, which precludes observation nanoscale features that affect material response. Here, we demonstrate use THz plasmon polaritons as an indicator surface quality prototypical quantum devices properties. Using near-field hyperspectral measurements, observe polaritonic doped silicon near metal-semiconductor interface. The presence polariton...
We experimentally realise the theoretical proposal for in-situ tunable photonic edge states emerging from qubits coupled to a waveguide with bandgap. These are directional, exhibiting theoretically zero population in opposite direction. Our experiment implements Rice-Mele configuration, where directionality of is controlled by varying qubit energy. The constructed using lumped resonators standard Xmon qubit. demonstrate existence these both actively, via transmission, and passively, through...