My research spans the fields of quantum information and nanomaterials. I currently focus on developing scalable trapped-ion quantum computing systems at the Center for Quantum Technologies (CQT), NUS. I also have a deep background in photovoltaics, especially in designing next-generation thin-film and transparent conducting materials for solar energy and optoelectronic devices.
As part of a collaborative effort with IME–A*STAR Singapore, I work on the development and integration of 2D surface ion traps. This includes chip-level trap design, photonic routing for scalable ion-photon interfaces, and cryogenic packaging for noise reduction and system stability. These efforts aim to advance scalable ion trap platforms through foundry-compatible processes and integrated photonics.
Key focus areas:
Surface ion trap chip design and simulation
Integrated photonic interfaces
Cryogenic packaging and testing
Process optimization with semiconductor fabrication facilities
Collaborator: IME–A*STAR, Singapore
Related presentations/publications: SPIE Photonics West (2024), EPTC (2023)
In parallel, I am involved in the National Quantum Processor Initiative (NQPI), where our focus is on developing a working 3D ion trap quantum computer. This architecture aims to support full quantum control of multiple ions with high fidelity. My contributions include laser system development, vacuum system design, and integration of scalable control infrastructure for multi-qubit operations.
Key focus areas:
3D trap design and assembly
High-power, narrow-linewidth laser systems
Quantum control electronics
System-level integration for quantum computing
Collaborator: National Quantum Processor Initiative (NQPI)
Related publication: Optics Express (2024)
My PhD and early postdoctoral research focused on third-generation photovoltaics, with an emphasis on dye-sensitized and perovskite-based solar cells. I worked extensively on developing novel transparent conducting oxides (TCOs) such as doped CuCrO₂, and engineered composite nanostructures for photoanodes and counter electrodes to enhance both efficiency and long-term stability.
Key topics: DSSCs, CZTS, TCOs, heterojunctions, 2D/3D nanomaterials, thin-film synthesis
Related Publication: Scientific Reports (2021), Applied Physics Letters (2018), PLOS One (2024)
Quantum control and ion trap characterization
Laser systems and optical setups
Vacuum and cryogenic systems
Thin film deposition (sputtering, PLD, etc.)
Spectroscopy (UV-Vis, PL, Raman, XPS)