Ultrafast Dynamics Group
Frédéric Laquai's Group


Jafar Khan

Research Scientists

Research Interests

Dr. Jafar’s major research interests are directed towards photophysics of semiconductors, in particular photocarrier recombination processes in highly excited crystals employing ultrafast transient absorption spectroscopy. In addition my research is focused applying the 4D electron microscope, a combination of spatial and femtosecond temporal resolution, implemented to study the field of materials science.

Selected Publications

Photoinduced Energy and Electron Transfer in Rubrene-Porphyrin Systems

J. I. Khan, A. S. Abbas, S. Aly, A. Usman, V. Melnikov, E. Alarousu, O. F. Mohammed,

Chemical Physics Letters, Vol 25, 237-242 (2014) 

Ultrafast Carrier Trapping of a Metal-doped Titanium Dioxide Semiconductor Revealed by Femtosecond Transient Absorption Spectroscopy

J. Sun, Y. Yang, J. I. Khan, E. Alarousu, Z. Guo, X. Zhang, Q. Zhang, O. F. Mohammed,

ACS Applied Materials & Interfaces, 6(13), 10022-10027, (2014) 

Remarkable Fluorescence Enhancement versus Complex Formation of Cationic Porphyrins on the Surface of ZnO Nanoparticles

S. M. Aly, M. S.Eita, J. I. Khan, E. Alarousu, O. F. Mohammed 

J. Phys. Chem. C, 118(23), 12154-12161, (2014) 

Effect of Ion Vibration Potential for 1-1Electrolytes 
J. I. Khan, M. Wang, H. I. Schlaberg, P. Guan
Chemical Physics Vol 425, 14-18, (2013) 

Towards Nano-Particle Resonance Imaging for Use in Breast Cancer Imaging 
P. Guan, M. Wang, H. I. Schlaberg, J. I. Khan, V. Speirs
Elsevier, special issue, (2009) 

Ultrasound Vibration Potential Measurement Techniques for Imaging, Nuclear engineering and design
H. I. Schlaberg, M. Wang, P. Guan, J. I. Khan
CElsevier, special issue, (2009)

Short XUV pulses to characterize field-free molecular alignment
F. Lepine, M. F. Kilng, Y. Ni, J. Khan, O. Ghafur, T. Martchenko, E. Gustafsson, P. Johnson, K. Varju, T. Remmeter, A. L’Huillier, M. J. J. Vrakking
Journal of Modern Optics Vol. 54, No. 7, 953–966, (2007)

Control of Electron Localiz ation in Molecular Dissociation
M. Kling, Ch. Siedschlag, A. -J. Verhoef, J. Khan, M. Schultze, Y. Ni, T. Uphues, M. Uiberacker, M. Drescher, F. Krausz, M. J. J. Vrakking
Science 312, 246, (2006)

Interference of Attosecond Electron Wavepackets
T. Remetter, P. Johnsson, K. Varju, Y. Ni, F. Lepine, E. Gustafsson, M. Kling, J. Khan, R. Lopez-Martens, J. Mauritsson, M. B. Gaarde, K. J. Schafer, M. J. J. Vrakking, A. L’Huillier
Nature Physics, (2006) 

Angularly resolved electron wave packet interferences
K. Varju, P. Johnsson, J. Mauritsson, T. Remetter, T. Ruchon, Y. Ni, F. Lepine, M. Kling, J. Khan, K. J. Schafer, M. J. J. Vrakking, A. L’Huillier
J. Phys. B, (2006)


  • Ph.D., University of Leeds, UK, 2010 
  • M.Sc., Physics, University of Copenhagen, Denmark, 2004
  • B.Sc., Physics, University of Copenhagen, Denmark, 2002

Professional Profile

  • 2013-Present: Postdoctoral Fellow, KAUST, Saudi Arabia
  • 2013-2013: Postdoctoral Fellow, University of Leeds, UK
  • 2010-2011: Postdoctoral Fellow, University of Leeds, UK