1) Developing aberration corrected Photo Emission Electron Microscopy . Project leader, responsible for the electron optics design. The research result was selected as one chapter in the book titled as Science of Microscopy, Edited by Dr.P. Hawkes and J. Spence, published by Klumer/Springer Academic publishers.2) Ultrafast streak camera. project leader, achieved 230fs temporal resolution and 10um spatial resolution. This ultra-fast x-ray detector has been successfully applied to the study of ultra-fast magnetic dynamics and warm dense matter using synchrotron radiation. Part of the results was selected as highlight of the ALS research and specially reported by Hank Hogan, of Photonics.3) Novel photocathode for high repetition rate Free electron laser. project co-ordiantor. One of the significant challenges for next generation FEL is in achieving a high repetition rate, while maintaining or even reducing emittance below the levels currently achieved for lasing. 4) Metal photocathode with reduced emittance and enhanced quantumm efficiency. Project leader5) Synchrotron Radiation instrumentation and application. Commissionned the first elliptically polarizing undulator beamline at the ALS. 6) Discover of new isotope nuclei. Coauthor in the experimental discovery of the neutron-deficient nuclei, 197Rn, 197mRn and 200Fr. The lifetime and decay mode of these new nuclei have been measured in this discovery.7) One of the pioneer to carry out experiment to study heavy ion reaction mechanism at intermediate energy. Measured the isotopic fragmentation distribution of 44MeV/u 129 Xe on 90Zr and197 Au.8) Advanced monochromator system for x-ray,9) Radioactive Secondary Beam and its reaction mechanismPI (principle investigator) of the ultra-fast x-ray detector lab (2-460), fiber laser lab (hutch 5.3.1) and photocathode lab (2-453), Beamline scientist of BL5.3.1 and BL7.3.1 at the ALS of Lawrence Berkeley Nation labSpecialties: 1) physicist/scientist 2) advanced electron optics design in electron microscopy and ultra-fast x-ray detector3) fs laser and high harmonics generation4) ultra-fast x-ray nano-science5) author or co-author of more than 100 science research papers, scientific lead of different research projects.