Faculty Members

CHEAH, Kok Wai - Elizabeth Law Endowed Chair in Advanced Materials


B.Sc. Hons, ARCS, M.Sc., DIC, Ph.D., CSci, CPhys. FinstP
Imperial College London


Senior Visiting Professor of Fudan University, Shanghai, China
Adjunct Professor of Sun Yat-sen University, Guangzhou, China
Visiting Professor of Jinan University, Guangzhou, China


Contact: Rm. OEE803
Tel: (852) 3411-7033
Email: kwcheah@hkbu.edu.hk
Website: Institute of Advanced Materials, Photonic Materials Laboratory

  1. Optical Properties of Plasmonic Devices
    Coupling of SPP and F-B Cavity Modes

  2. Figure 1.1
    Figure 1.2
    Figure 1.3
    Figure 1.4

    Optical Spin Hall Effect and Plasmonics
    Light can transport angular momentum through two different components:the orbital angular momentum (OAM) and the spin angular momentum (SAM). As light moves OAM and SAM can couple due to spin-orbit interaction. In the optical range, this is the Optical Spin Hall Effect (OSHE). In plasmonics, phase changes can be introduced through structural design This is ideal for controlling and generating spin-orbit interaction. Control of OSHE would allow greater bandwidth usgae in optical communications.

    Figure 1.5
    Figure 1.6
    Figure 1.7
  3. Highly Efficient Green Organic Light-Emitting Devices Based On Intermolecular Exciplex

    Figure 2
  4. Transparent OLED
    Transparent OLED is developed in IAM of Hong Kong Baptist University. The aim is to develop a new class of transparent cathode that requires no/minimum modification to the OLED device structure. Therefore it can directly replace existing metal cathode with minimum/no change to the OLED emission characteristics. We have achieved more than 35% (45%-25%) average transmission in optical range for the cathode and used a standard OLED structure to demonstrate its performance.

    Figure 3.1
    Figure 3.2