Dr Xiulai Xu
Telephone : +44.1223.44.29.08 (Direct)
Email: xx757 (add domain name : "cam.ac.uk")
- Quantum Optics
I have been working on electronic materials and devices in Singapore and China. Wide-band gap semiconductor thin films, such as ZnO and SiC, have been successfully grown using a filtered-cathode vacuum-arc technique. During my MSc study, I worked on blue LEDs for flat panel displays using a combination of inorganic and organic materials.
Recent Research projects
My current research is focused on solid-state quantum information processing and optical spintronics based on semiconductor nanostructures:
- Quantum information processing : Highly efficient and stable single-photon sources, photon-number resolving photon detector, quantum coupling between excitonic quantum bits and coherent control of single excitonic and spin quantum bits.
- Cavity quantum electrodynamics : Coupling between quantum dots and nanocavities to achieve efficient single-photon sources and exciton-photon entanglement; Cavity modes of ZnO nanowires and nanobelts at room temperature.
- Optical spintronics : Addressing and detecting single spins in single quantum dots with ultrafast laser pulses; Spin Injection Hall effect in two dimensional electron gas.
S. Cao, J. Tang, Y. Sun, K. Peng, Y. Gao, Y. Zhao, C. Qian, S. Sun, H. Ali, Y. Shao, S. Wu, F. Song, D.A. Williams, W. Sheng, K. Jin, and X. Xu, Nano Research 9, 2, 306 (2016), Observation of coupling between zero- and two-dimensional semiconductor systems based on anomalous diamagnetic effects
J. Mar, J. Baumberg, X. Xu, A. Irvine, and D. Williams, Phys. Rev. B 90, 241303 (R) (2014), Ultrafast high-fidelity initialization of a quantum-dot spin qubit without magnetic fields
J. Tang, S. Cao, Y. Gao, Y. Sun, W. Geng, D. Williams, K. Jin, and X. Xu, Appl. Phys. Lett. 105, 4, 041109 (2014), Charge state control in single InAs/GaAs quantum dots by external electric and magnetic fields