PhD, AEA Harwell and University of Salford, UK (1990)

Office : S7-01-12  |  Tel : (65) 6516 7930
Email : phymbhb@nus.edu.sg or slshead@nus.edu.sg

Current Research

  • My ion beam research activities are centred around the use of focused high-energy beams of charged particles as a means of imaging the structure and crystallinity of materials and to modify their properties. This work includes areas such as porous silicon formation, electrochemistry, ion optics, and ion channelling, accelerator physics. Much of the current work is on the use of silicon micromachining to fabricate micro- and nanoscale components for silicon photonics.

  • My Synchrotron research activities include X-ray lithography, X-ray optics, accelerator physics, soft X-ray scattering.

Selected Publications

  1. A soft x-ray-ultraviolet (SUV) beamline and diffractometer for resonant elastic scattering and ultraviolet-vacuum ultraviolet reflectance, Rev. Sci. Instrum. 89, 113113 (2018)

  2. A study of small impact parameter ion channeling effects in thin crystals, Euro. Phys. J. B, 91 49 (2018)

  3. Tunable and low-loss correlated plasmons in Mott-like insulating oxides, Nature Communications 8, 15271 (2017)

  4. Electron transport and visible light absorption in a plasmonic photocatalyst based on strontium Niobate, Nature Communications 8, 15070 (2017)

  5. Oxygen Passivation Mediated Tunability of Trion and Excitons in MoS2, Phys. Rev. Lett. 119, 077402 (2017)

  6. Coexistence of Midgap Antiferromagnetic and Mott States in Undoped, Hole- and Electron-Doped Ambipolar Cuprates, Phys. Rev. Lett. 116, 197002 (2016)

Affiliations & Links