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The general theme of our group is the physics of optically excited
states in molecular organic semiconductors. We aim to understand
the microscopic nature of the excited states, the relaxation and energy
transfer processes after photon absorption and the interaction of excitons
with the strongly enhanced electromagnetic field inside microcavities.
To explore the structure and dynamics of the excited states we apply
a wide range of spectroscopy and we develop microscopic exciton models.
Our major experimental efforts are concentrated on the application
of ultrafast pump-probe spectroscopy.
There also have been strong activities in the spectroscopy of inorganic III-V semiconductors
and hetero structures, which are described on a separate home page:
Ultrafast spectroscopy of III-V semiconductors.
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Research topics
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| Microcavities |
- Organic Vertical Cavity Surface Emitting Lasers (OVCSEL)
- Ultrafast transmission dynamics of empty microcavities
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| Exciton relaxation |
- Ultrafast relaxation processes
- Luminescence and pump-probe anisotropy
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| Exciton diffusion |
- Exciton transport and transfer processes in hetero systems
- Exciton-exciton interaction at high excitation densities
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| Exciton models |
- Construction of model Hamiltonians
- Parameterization by fitting of experimental spectra or quantum chemistry
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Methods and materials
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Publications
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list of publications
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Group members
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last revised Apr 2009
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