Research: Molecular Beam Epitaxy of Group III Nitrides:

  • optoelectronic application
  • electronic application


  • metal vapor deposition (contacts)
  • mirror manufacturing
  • photolithography
  • e-beam lithography

Characterization Methods :

  • High resolution X-Ray Diffraction (HRXRD)
  • Reflection High Energy Electron Diffraction (in-situ RHEED)
  • AFM and STM
  • PL and CL
  • Hall-Effect
  • IV and CV

Research Projects:


Current projects:

  • Nonlinear optics and coherent intersubband physics of cubic GaN/Al(Ga)N heterostructures (SFB/TRR 142, project B02)
  • Selective growth of cubic group III-Nitrides on nano-structured 3C-SiC (001) substrate (DFG single project, As 107/7-1)

 Completed projects :

  • Ultrafast acoustics modulation of light emission (SFB/TRR 142, project A06)
  • FETs from non-polar cubic III-nitride nanostructures (DFG)
  • Defect complexes in GaN - Preparation, characterization and ab initio modelling (DFG)
  • Single photon sources with group III - nitrides (DFG-GK, project B1)
  • Single photon sources – integration of cubic GaN quantum dots in various micro- resonators (DFG-GK 1464, 2. funding period, project B1)
  • Experimentally and numerally estimated conductor-and valence-band-offsets  in cubic III nitrides and intersubband devices. (DFG-GK 1464, 2. funding period, project B2)



Re­search & Fa­cil­it­ies

The newly established Ultrafast Nanophotonics group at the University of Paderborn focuses its research on optical properties of artificial material system. Modern nanotechnology opens the possibility to manipulate the arrangement and structure of natural materials down to the nanoscale comparable to the optical wavelength. This freedom allows a direct engineering of the optical material properties that can be utilized for a new class of photonic devices and applications.
The characterization of the optical properties of such material systems plays an important role for the further design and to proof principle concepts arising from new physical effects. Ultrafast spectroscopy is the key in order to understand the underlying processes in these materials that lead to the desired functionality.
In combination with strongly confined optical fields based on Plasmonic excitations these materials posses the potential for highly compact and ultrafast optical devices.

IS­BT - Inter sub­band trans­itions

Cu­bic Group III Ni­trides

Photon­ics Crys­tals

Cu­bic GaN QDs